问题

Rock-climbing is a breathtaking activity, very popular nationwide among young people, ______ cooperation as well as courage plays an important role.

A:who
B:where
C:which
D:of which

正确答案是：

同类题型

________ old man behind Mary is ________university teacher.

Which country has __________ population, China ,India or Japan ——-China, of course.

I don’t like this pen. Could you show me —Ok. Here you are.

_____ reasonable, the idea he _____to create a friendly environment attracted much public attention. [ ]

“I don’t think it’s my _______ that the TV blew up Ijust turned it on That’s all” said the boy