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: The telephone .............. ten times before Patsy finally answered it.

A. rings

B. ringing

C. had rung

D. is ringing

Câu 2: Paul and Linda .............. us to their party last weekend.

A. was inviting

B. invited

C. had been inviting

D. will invite

Câu 3: Kevin can’t talk on the phone because he .............. dinner right now.

A. is eating

B. eats

C. has eaten

D. has been eating

Câu 4: We .............. since 5:00.

A. talk

B. are talking

C. talking

D. have been talking

Câu 5: It ............... a lot last winter.

A. snows

B. has been snowing

C. snowed

D. snow

Câu 6: Babies ................ when they are hungry.

A. cry

B. are crying

C. have been crying

D. cries