问题

The computer system _____ suddenly while he was searching for information on the Internet.

A:broke down
B:broke out
C:broke up
D:broke in

正确答案是：

同类题型

The boss said we had only three days to finish the work.—Don’t worry.We have already _______ two thirds of it.

Tom likes playing the violin and is good at English.______hissister.

Her son,to whom she was so_____,went abroad ten years ago.[ ]

Where ________ Tom and Mike ________ from

Who is absent today–_______ is absent. We are all here.