Teenagers are warned to be careful when making friends online, because when you can’t see a person, they could be __________.
| A．everybody | B．somebody | C．anybody | D．nobody |
相关试题
Suan!Where have you been? You have no idea ___ worried I was.
| A．how | B．that | C．that how | D．what |
—We all had a lot of fun at the barbecue yesterday. Pity you weren’t there.
—I really should have gone with you but I _____ on some remaining problems.
| A．worked | B．was working | C．would work | D．would have worked |
When you finish your work，don’t forget to put the tools back where they ．
| A．are | B．will be | C．were | D．had been |
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