问题

The old professor told us that every part of the materials should be made use of _____ the station.[ ]

A: building
B: to build
C: build
D: being built

正确答案是：

同类题型

These kids practice spoken English ______ joining the English club.

“You won the game” Jack asked me _______________.

Dave, can you tell me about your ________yesterday—Of course. I saw an alien when I was playing in the park.

ng,_____ broadcasting style lots ofChinese appreciate, died as a result of cancer.

John is _____ honest boy. He said he would come here in _____ hour.