摘要： - Where is Tom ? - He hasn’t come to school today . I think he be ill . A. has to B. should C. may D. need

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--“Where is Tom?”
--“He hasn’t come to school today, I think he ______be ill.”

--“Where is Tom?”

--“He hasn’t come to school today, I think he ______be ill.”

A．has to B．should C．may D．can

--“Where is Tom?”
--“He hasn’t come to school today, I think he ______be ill.”

--“Where is Tom?”--“He hasn’t come to school today, I think he ______be ill.”