问题

Lucy looks blue today.— Yes, but I don’t know what it is________makes herso upset. [ ]

A: as
B: what
C: that
D: which

正确答案是：

同类题型

Dick never eats vegetables, so this is not a _____ life.

It is one of the funniest things ____on theInternet so far this year.

Many students don’t know how to stress and become worried.—-I think they’better ask their teathers for help.

Sorry, Bill, I can’t go fishing with you tomorrow.—- _________.

We’ve offered her the job，but I don’t know ____she’ll accept it