Câu hỏi: Louise was listening to the radio while she .................. the house.

A. is cleaning

B. was cleaning

C. had cleaned

D. will dean

Câu 1: Before the police arrived, the robbers ..........................

A. run

B. had run

C. have run

D. have been running

Câu 2: The new project received a lot of financial assistance from the WTO; ..............., it could easilybe approved by the authority.

A. thus

B. on the other hand

C. on the contrary

D. inaddition

Câu 3: Babies ................ when they are hungry.

A. cry

B. are crying

C. have been crying

D. cries

Câu 4: It ............... a lot last winter.

A. snows

B. has been snowing

C. snowed

D. snow

Câu 5: The store ..................... two sales so far this year.

A. is having

B. has been having

C. has

D. has had

Câu 6: Many ads do give important information about products; ....................., some of them are merelyhumorous or foolish.

A. furthermore

B. however

C. consequently

D. at the same time