I. Complete the sentences . Use the simple past or the past continuous

1. When I ........... ( arrive ) home from work , she still ......... ( sleep )

2. As me ......... ( cross ) the street , we ............ ( see ) an accident

3. When the bell .......... ( ring ) , Tom .......... ( take ) a bath

4. She ............. ( study ) in the library last night

5. When Mary .......... ( leave ) the house this morning , it ............. ( rain ) very hard

6. I ............... ( mail ) the letters while peter ......... ( talk ) on the phone

7. The burglar ....... ( take ) my TV when I ........... ( come ) home

8. The Titanic ............. ( travel ) to New York when it hit an iceberg and ...........( sink ) in the Atlantic

9. When we ....... ( arrive ) at the meeting , Mr.Park ......... ( make ) a speech

10. My dog .......... ( walk ) along quietly when a stranger .......... ( attack ) him

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

The concept of obtaining fresh water from iceberg that is towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being considered quite seriously by many nations, especially since scientists have warned that the human race will outgrow its fresh water supply faster than it runs out of food. Glaciers are a possible source of fresh water that has been overlooked until recently. (A)

        Three-quarters of the Earth's fresh water supply is still tied up in glacial ice, a reservoir of untapped fresh water so immense that it could sustain all the rivers of the world for 1,000 years. Floating on the oceans every year are 7,659 trillion metric tons of ice encased in 10,000 icebergs that break away from the polar ice caps, more than ninety percent of them from Antarctica. (B)

        Huge glaciers that stretch over the shallow continental shelf give birth to icebergs throughout the year. Icebergs are not like sea ice, which is formed when the sea itself freezes; rather, they are formed entirely on land, breaking off when glaciers spread over the sea. As they drift away from the polar region, icebergs sometimes move mysteriously in a direction opposite to the wind, pulled by subsurface currents. Because they melt more slowly than smaller pieces of ice, icebergs have been known to drift as far north as 35 degrees south of the equator in the Atlantic Ocean. (C)

        The difficulty arises in other technical matters, such as the prevention of rapid melting in warmer climates and the funneling of fresh water to shore in great volume. But even if the icebergs lost half of their volume in towing, the water they could provide would be far cheaper than that produced by desalination, or removing salt from water. (D)

What are the technical matters mentioned as the difficulty arising in the process of obtaining fresh water from the iceberg?

A. The prevention of rapid melting iceberg

B. The filtering water and the funneling it to shore in a large amount 

C. The purifying the fresh water and carrying it to shore 

D. The prevention of rapid melting and the funneling to shore in great volume

giúp mình vs nhé mọi người

1. many women nawadays are fond of ........... football

A. playing B. to play C. play D. played

2. the doctor suggested that the secretary.......... at least three days off work

A. to have B. having C. should have D. have

3. my brother was..........as the most effectiveactivist in the school charity programme

A. said B. nominated C. invited D. appointed

4. i'm going to tell you something important, so please listen ..........

A. care B. careful C. carelessly D. carefully

5. ba ate a lot of food .......... he wasn't very hungry

A. but B. and C. though D. because

6. the girl was not pretty but she sang.........

A. beauty B. more beautiful C. beautiful D. beautifully

7. check the faucets for dripping water............. you will have to pay an enormous water bill

A. although B. or C. because D. however

8. if we............wasting water, there will be shortage of fresh water in a few decades

A. turn on B. turn off C. go on D. look after

9. you should ............all the lights before going out

A. turn on B. B. turn off C. turn up D. turn out

10. mrs. yen go to ................ the faucet when she left for work

A. turn on B. turn off C. look for D. look after

Give the correct tense or form of the verbs in brackets. 
a. The ladder looks unstable. It (1. fall) ______ apart. I wish I (2. have) ______ enough time to do something
about it.
b. My teacher was not at home when I (3. arrive) ______. She (4. just/ go) ______ out.
c. By the time he (5. return) ______ next year, his daughter (6. already/ leave) ______ school.
d. I (7. never/ read) ______ any novels (8. write) ______ by a Korean author.
e. She (9. walk) ______ all the way home. That's why she (10. be) ______ tired now.
f. I dislike living in London because it (11. rain/ always) ______.
g. The plane had taken off before they (12. arrive) ______ at the airport yesterday.
h. The children seemed (13. be) ___ surprised to hear the news.
i. A: Why are you holding a piece of paper?
B: I (14. write) ______ a letter to my friends in Texas.
j. The Titanic (15. cross) ______ the Atlantic when it (16. strike) ______ an iceberg.
k. Ted: It is so hot in here!
Sarah: I (17. turn) ______ the air-conditioning on.
l. By the time he stopped at the first gas station, he (18. drive) ______ for three hours.
m. Wind (19. come) ______ from differences in air pressure.
n. My brother is the only one (20. realize) ______ the danger.
 

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42.

The concept of obtaining fresh water from iceberg that is towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being considered quite seriously by many nations, especially since scientists have warned that the human race will outgrow its fresh water supply faster than it runs out of food. Glaciers are a possible source of fresh water that has been overlooked until recently. (A)

Three-quarters of the Earth's fresh water supply is still tied up in glacial ice, a reservoir of untapped fresh water so immense that it could sustain all the rivers of the world for 1,000 years. Floating on the oceans every year are 7,659 trillion metric tons of ice encased in 10,000 icebergs that break away from the polar ice caps, more than ninety percent of them from Antarctica. (B)

Huge glaciers that stretch over the shallow continental shelf give birth to icebergs throughout the year. Icebergs are not like sea ice, which is formed when the sea itself freezes; rather, they are formed entirely on land, breaking off when glaciers spread over the sea. As they drift away from the polar region, icebergs sometimes move mysteriously in a direction opposite to the wind, pulled by subsurface currents. Because they melt more slowly than smaller pieces of ice, icebergs have been known to drift as far north as 35 degrees south of the equator in the Atlantic Ocean. (C)

The difficulty arises in other technical matters, such as the prevention of rapid melting in warmer climates and the funneling of fresh water to shore in great volume. But even if the icebergs lost half of their volume in towing, the water they could provide would be far cheaper than that produced by desalination, or removing salt from water. (D)

Question 42: What are the technical matters mentioned as the difficulty arising in the process of obtaining fresh water from the iceberg?

A. The prevention of rapid melting iceberg

B. The filtering water and the funneling it to shore in a large amount

C. The purifying the fresh water and carrying it to shore

D. The prevention of rapid melting and the funneling to shore in great volume