问题

How unhappy your roommate looks!—Yes, but he’s not willing to tell me what it is _______ is troubling him.

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

正确答案是：

同类题型

MrSmith warned his daughter ______ afterdrinking

Usually, leaves trees in autumn.

What were you doing the rainstorm

I thought him nice and honest ______I met her

1—How often do you go tothe movies—________. Iam too busy to relax myself.