摘要：He hasn’t to his father’s letter.
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“Where is Tom?”
“He hasn't come to school today. I think he ______ be ill.”
- A.has to
- B.should
- C.may
- D.can
--Jack's never worked hard at English, _______?
-- _______ , so he can't answer the question in English, I think.
- A.is he; Yes, he is
- B.is he; No, he isn't
- C.has he; Yes, he has
- D.has he; No, he hasn't
---Where is John?
---He hasn't come to school today．I think he ________ be ill．
- A.has to
- B.should
- C.may
- D.need