Tom has been absent for two days．Do you know what to him? A．has happened B．would
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Tom has been absent for two days．Do you know what _________ to him?
A．has happened B．would happen C．was happened D．had happened
试题答案
A
考查动词时态。句意：汤姆两天不在了。你知道他发生了什么吗？