Câu hỏi: My parents    ........... in Florida since 1999.

A. has lived

B. have lived

C. are living

D. live

Câu 1: I ................. the house before you called.

A. leave

B. am leaving

C. had left

D. had been leaving

Câu 2: It ............... a lot last winter.

A. snows

B. has been snowing

C. snowed

D. snow

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

A. cry

B. are crying

C. have been crying

D. cries

Câu 4: The old drainage pipelines must be maintained; ................, leakage will be unavoidable.

A. therefore

B. similarly 

C. on the contrary

D. otherwise

Câu 5: I don't want to go outside today because it ....................

A. rain

B. rains

C. is raining

D. is rain

Câu 6: The store ..................... two sales so far this year.

A. is having

B. has been having

C. has

D. has had