They promise that the work would all be finished next week.A. untilB. inC. byD. to

问题补充：

They promise that the work would all be finished next week.

A. until

B. in

C. by

D. to

答案：

A. until

B. in

C. by

D. to

解析：

by 意为“最迟到……之前，到……的时候已经”。