He________be in the library because I saw him on the playground just now.
举一反三
- I saw him just now. (改疑问句)_____ you _____ him just now?
- He_____ upstairs because I saw him playing football on the playground just now. A: mustn’t be B: might not be C: can’t be D: should not be
- Jack_______ be at home because I saw him in the library just now. A: can’t B: may C: must D: mustn’t
- – Is Jack in the library? - Maybe. I saw him ______ out with some books just now. A: going B: go C: to go D: went
- She __________be ill because I saw her playing tennis just now.