题目内容

She asked the worker how long _______ to build the church.

A. it would take
B. had it taken
C. it takes
D. it had taken

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Mary couldn't open the front door because she _______ the key.

A. had forgotten
B. was forgetting
C. has forgotten
D. forgot

They told us that they _________ for more than two hours.

A. had been waiting
B. were waiting
C. have waited
D. has waited

Did you do what l _________ you to do yesterday?

A. have told
B. had told
C. had been telling
D. tells

We were hurrying because we thought the bell _________ .

A. had already rang
B. has already rang
C. had already rung
D. rang

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