问题

The computer system suddenlywhile he was searching for information on the Internet

A:won’t lock
B:won’t be locked
C:can’t lock
D:isn’t locked

正确答案是：

同类题型

It looks like rain, doesn’t it— _______.

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－Do you know that there are many different animals in the zoo －Yes, I do. And I also know that some of them are scary.