There is no one answering the phone. He ___ left home.
举一反三
- There is no one answering the phone. He ___ left home. A: have must B: must C: must have
- There is no one answering the phone. He___ left home. A: must B: could have C: must have
- He might ______(leave) it at home. (=Perhaps he left it at home.)
- When I arrived home, he ________ for almost one hour. A: had left B: left C: had been away D: was away
- Since nobody is answering the phone，they____________． A: should have left B: needn"t have left C: must have left D: can have left