If the building project by the end of this month is de- layed construction company will

问题补充：

If the building project by the end of this month is de- layed, construction company will be freed.

A. to be completed

B. is completed

C. being completed

D. completed

答案：

A. to be completed

B. is completed

C. being completed

D. completed

解析：从语境可以看出，如果建筑工程被耽搁的话，建筑公司将被罚款，所以工程应当是正在被建，将要被完成。所以要用动词不定式to be completed．．．短语作定语。