I need one more stamp before my collection ______.

　 A. had completed 　     B. completes

　 C. has been completed 　 D. is completed

I need one more stamp before my collection ______.

　 A. had completed 　 B. completes

　 C. has been completed 　 D. is completed

I need one more stamp before my collection ______.

A. had completed 　 　　B. completes

C. has been completed 　 D. is completed

When _____, the new school buildings can hold as many as 10,000 students.

A. being completed　　B. completed　　

C. to be completed　　D. is completed

If the building project ________ by the end of this month is delayed, the construction company will be fined.

A. being completed　B. is completed   C. to be completed　D. completed