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時(shí)態(tài)。只表示可能性更小。 He might be at home. 3. must用在肯定句中表示較有把握的推測,意為“一定”。 He must be working at home. EXERCISES: book ____ Liu Ying’,her name is on the book cover. a. must be b. may be c. maybe d. mustn’t be 2. Who is the man over there? Is it Mr. Li? No, it ______ be him. Mr. Li is in his hometown now. a. mustn’t b. may not c. can’t d. needn’t 3. Listen, someone is ing, who ______ it be? It _____ be Tom. He said he was to e at the time. a. might。can b. can。 must c. can。may d. could。can 4. Mike is absent today. Where is he? he _____ be ill at home. a. can b. might c. must d. should a c b b b Homework Finish the Self Check.