Câu 51: A. survive B. enlarge C. struggle D. occur

 He started learning French six years ago.
A. He has learned French for 6 years.
B. It was six years ago did he start learning French.
C. He hasn't learnt French for 6 years.
D. It is six years since he has learned French.

2. I can remember _________ you about this three times already.

A. telling         B. to tell        C. told        D. tell 

Some snakes lay eggs, but _______ give birth to live offspring.

A. other         B. the other        C. others       D. the others

Those with the greatest burden of childcare responsibilities have increased _______ of psychological distress

A. risk

B. danger

C. peril

D. threat

He _______ ignorance when we found that someone did eat all the cakes we had prepared for the picnic trip.

A. excused

B. pleaded

C. admitted

D. invoked

_______ weather includes unexpected and unseasonal weather ; it usually has bad effect on our life.

A. Utter

B. Exotic

C. Extreme

D. Striking

They haven't been able to estimate the _______ of damage caused by the earthquake.

A. certificate B. degree C. diploma D. qualification

Question 4: Some economists argue that new technology cause unemployment. Others feel that  it allows more jobs to be created.

1. Some economists argue that new technology causes unemployment, so others feel that it allows more jobs to be created.
2. Arguing that new technology causes unemployment, other economists feel that it allows more jobs to be created.
3. Besides the argument that new technology causes unemployment, some economists feel that it allows more jobs to be created.
4. Some economists argue that new technology causes unemployment whereas others feel that it allows more jobs to be created.

Question 3: The history of the United States is not long. It is interesting.

1. The history of the United States is too long to be interesting.
2. The history of the United States is not long enough to be interesting.
3. The history of the United States is interesting whereas not long.
4. The history of the United States is not long but interesting.