k cho minh nha

2/x=5/6

10/x*5=10/12

=>x*5=12

=>x=2,4

1/ Math and Literature are ....... subject in high school.

A. adding B compulsory C.optional D religrious

2/ A bulb that can save enegy is a(n)......... buld.

A enegy-saved B saving- energy C energy- saving D. energy-saving

3/ A lot of tree in forests are cut down, resulting in...........

A. deforestation B. environment C. prevention D. population

4/ Living in a far-way town I can't get.......... to the internet easily.

A. work B relation C access D connect

* FILL IN THE BLANKS WITH THE APPROPRIATE PREPOSITION.

1/ We thanked them.....for......... all their help.

2/ The teacher divided the class .... into......... two groups.

3/ Tuan's parents was disappointed .....by......him because he failed the failed the final test.

4/ Try to learn the meaning of new word....by........heart.

5/ My sister has lived in this city .....since.........1990.

6/ We always pray ........before........ meals.

*Complete the second sentence so that it has the same meaning as the fist.

1/ Mr. Ha is late for work because it rains too heavily.

=> If it did not rain too heavily, Mr. Ha would not be late.

2/ " Why are you lazy, Lan ?, teacher asked.

=> The teacher asked why Lan was lazy.

3/ The tailor has to finish my dress before I leave for Ha Noi

=> My dress has to be finished by the taylor before I leave for Hanoi.

4/ If she doesn't water these trees, they will die.

=> unless she waters these trees, they will die.

5/I haven't seen my sister since 2000.

=> I last saw my sister in 2000.

1. Doctor carter will stand.......in for...........doctor Smith in the maternity ward, who is on a study tour abroad.

stand in for: thay thế, thay cho

2. These students are picked........out............horn no less than 50 applicants for the scholarship.

pick sth/sb out: (tuyển chọn) to choose somebody/something carefully from a group of people or things

3. Ordering other people in the family...................seems to run in his blood as he was a commander in the army for ten years.

4. The heavy blow on the head left the Vietnamese fighter in a coma for two weeks. Happily, thanks to the best medical care he pulled.......through..............

pull through /pull through something: (hồi phục) to get better after a serious illness, operation, etc.

5. Try rubbing some detergent into the cloth to take........off..............the stain.

take off the stain: to remove the stain: loại bỏ vết ố.

6. Frank was not cut.......out for.............the job of a policeman because of his excitable character.

be cut out for sth; be cut out to be sth : phù hợp ( to have the qualities and abilities needed for something)

7. Have the authorities finished looking......for..........the cause of the explosion yet!

to look for: tìm kiếm

8. It's impossible to live on the low unemployment benefit I come............by..........from the government.

to come by (from) : nhận (to receive )

9. Everybody put Mr. Spark's success.......down to..............his extraordinary cleverness at persuading people to entrust their money with him.

put sth down to sth: cái gì xảy ra do..: to consider that something is caused by something

10. Many a change has been brought.......about.............in the climate by global warming.

bring something about: gây ra điều gì :to make something happen