Câu hỏi: We must take steps to preserve natural resources; otherwise the planet will be in danger. 

A. Unless we take steps to preserve natural resources, the planet will be in danger. 

B. Unless we take steps to preserve natural resources,the planet will not be in danger.

C. If we take steps to preserve natural resources, the planet would be in danger.

D. If we take steps to preserve natural resources,the planet will be in danger. 

Câu 1: We decided to go out for dinner _________it was raining heavily. 

A. because

B. despite 

C. even if

D. although

Câu 2: “It’s too stuffy in this room, isn’t it?” said the guest.

A. The guest suggested that the room should be aired. 

B. The guest remarked that the room should not be aired.

C. It’s too stuffy in this room, isn’t it

D. The guest said that there is too much stuff in the room

Câu 3: You          forget what I told you . It is very important

A. need not 

B. don't have to

C. must not

D. shan't

Câu 4: I was named                 my grandfather.

A. after

B. to 

C. in

D. on

Câu 5: People have discovered a new source of energy. 

A. A new source of energy have been discovered by people.

B. A new source of energy has discovered.

C. A new source of energy has been discovered.

D. A new source of energy have been discovered. 

Câu 6: I don't know him             to borrow money from him.

A. enough good

B. good enough

C. well enough 

D. enough well