问题

I’m so ______ to all those volunteers because they helped my terrible day end happily.

A:special
B:superior
C:grateful
D:attractive;

正确答案是：

同类题型

There greatchanges in our city in the past 10 years.

Danielis the only one of the students in the class that never_____a mistake even whenit is pointed out to him.

Can you meinformation aboutthe student exchange program

I have the same opinion _____

Tom, you left the lights in the classroom on.– Oh, sorry, I _________ to turn them offThanks for your reminding