问题

The computer system ____suddenly while he was searching forinformation on the Internet

A:while
B:the instant
C:suddenly
D:before

正确答案是：

同类题型

It’s the __ job he’s ever done.

Ever since then, he ______ a fan of American country music.

John’s father went to Nanjing ________ten days ago.

I thought he hated the TV .You are right,____ he still watches the program

The old lady lives ______ in a ______ house, butshe doesn’t feel _____.