Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (31)________ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way even very hard rocks are worn away by the wind. When particles of rocks or soil became loosened(tơi ra) in any way, running water carries them down the (32)________ Some rocks and soil particles are carried into streams and then into the sea. Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (33)________ of its soil. The roots of plants help to (34)________ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands (35)________ to slow down erosion.

Điền vào ô số 33

A. few 

B. much 

C. little 

D. large

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (31)________ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way even very hard rocks are worn away by the wind. When particles of rocks or soil became loosened(tơi ra) in any way, running water carries them down the (32)________ Some rocks and soil particles are carried into streams and then into the sea. Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (33)________ of its soil. The roots of plants help to (34)________ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands (35)________ to slow down erosion.

Điền vào ô số 34

A. stay 

B. store 

C. hold 

D. back

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (31)________ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way even very hard rocks are worn away by the wind. When particles of rocks or soil became loosened(tơi ra) in any way, running water carries them down the (32)________ Some rocks and soil particles are carried into streams and then into the sea. Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (33)________ of its soil. The roots of plants help to (34)________ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands (35)________ to slow down erosion.

Điền vào ô số 35

A. help 

B. assess 

C. facilitate 

D. aid

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (31)________ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way even very hard rocks are worn away by the wind. When particles of rocks or soil became loosened(tơi ra) in any way, running water carries them down the (32)________ Some rocks and soil particles are carried into streams and then into the sea. Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (33)________ of its soil. The roots of plants help to (34)________ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands (35)________ to slow down erosion.

Điền vào ô số 32

A. hillsides 

B. borders 

C. topside 

D. topsoil

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (31)________ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way even very hard rocks are worn away by the wind. When particles of rocks or soil became loosened(tơi ra) in any way, running water carries them down the (32)________ Some rocks and soil particles are carried into streams and then into the sea. Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (33)________ of its soil. The roots of plants help to (34)________ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands (35)________ to slow down erosion.

Điền vào ô số 31

A. holds up 

B. picks up 

C. cleans out 

D. carries out

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the

correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 33

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (33)_______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, (34)_______ very hard rocks are worn away by the wind.

When particles of rocks or soil became loosened in any way, running water carries them down the hillsides. Some rocks and soil particles are carried into streams and then into the sea.

Land that is covered with trees, grass and other plants wear away very slowly, and so loses very (35)_______ of its soil. The roots of plants help to hold the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands help to slow down erosion.

Even where the land is (36)_______ covered with plants, some erosion goes on. In the spring, the melting snow turns into a large quantity of water that then runs downhill in streams. As a stream carries away some of the soil, the stream bed gets deeper and deeper. (37)_______ thousands of years of such erosion, wide valleys are often formed.

A. much

B. few

C. little

D. large

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the

correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 33

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (33)_______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, (34)_______ very hard rocks are worn away by the wind.

When particles of rocks or soil became loosened in any way, running water carries them down the hillsides. Some rocks and soil particles are carried into streams and then into the sea.

Land that is covered with trees, grass and other plants wear away very slowly, and so loses very (35)_______ of its soil. The roots of plants help to hold the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands help to slow down erosion.

Even where the land is (36)_______ covered with plants, some erosion goes on. In the spring, the melting snow turns into a large quantity of water that then runs downhill in streams. As a stream carries away some of the soil, the stream bed gets deeper and deeper. (37)_______ thousands of years of such erosion, wide valleys are often formed.

A. clean out

B. picks up

C. carries out

D. holds out

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the

correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 34

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (33)_______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, (34)_______ very hard rocks are worn away by the wind.

When particles of rocks or soil became loosened in any way, running water carries them down the hillsides. Some rocks and soil particles are carried into streams and then into the sea.

Land that is covered with trees, grass and other plants wear away very slowly, and so loses very (35)_______ of its soil. The roots of plants help to hold the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands help to slow down erosion.

Even where the land is (36)_______ covered with plants, some erosion goes on. In the spring, the melting snow turns into a large quantity of water that then runs downhill in streams. As a stream carries away some of the soil, the stream bed gets deeper and deeper. (37)_______ thousands of years of such erosion, wide valleys are often formed.

A. though

B. still

C. such

D. even

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the

correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 36

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (33)_______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, (34)_______ very hard rocks are worn away by the wind.

When particles of rocks or soil became loosened in any way, running water carries them down the hillsides. Some rocks and soil particles are carried into streams and then into the sea.

Land that is covered with trees, grass and other plants wear away very slowly, and so loses very (35)_______ of its soil. The roots of plants help to hold the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands help to slow down erosion.

Even where the land is (36)_______ covered with plants, some erosion goes on. In the spring, the melting snow turns into a large quantity of water that then runs downhill in streams. As a stream carries away some of the soil, the stream bed gets deeper and deeper. (37)_______ thousands of years of such erosion, wide valleys are often formed.

A. thickly

B. scarcely

C. thinly

D. strongly

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the

correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 37

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (33)_______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, (34)_______ very hard rocks are worn away by the wind.

When particles of rocks or soil became loosened in any way, running water carries them down the hillsides. Some rocks and soil particles are carried into streams and then into the sea.

Land that is covered with trees, grass and other plants wear away very slowly, and so loses very (35)_______ of its soil. The roots of plants help to hold the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground. Thus, forests and grasslands help to slow down erosion.

Even where the land is (36)_______ covered with plants, some erosion goes on. In the spring, the melting snow turns into a large quantity of water that then runs downhill in streams. As a stream carries away some of the soil, the stream bed gets deeper and deeper. (37)_______ thousands of years of such erosion, wide valleys are often formed.

A. After

B. During

C. Among

D. In