问题

What’s the matter with you, Tom?—______ the ladder, one of arms has been broken.

A:Climbing
B:While climbing
C:To climb
D:While I was climbing

正确答案是：

同类题型

Only then ________ that he had lost a goodchance of achieving his dream.

下列各句中，没有语病的一句是

It is a research group __________ 2 teachers and 8 students.

How many apples do you need—_____, please.

Have you finished the work yet— Not yet. I need two more days.