I don't believe him. He ____ be serious.
A: can't
B: mustn't
A: can't
B: mustn't
举一反三
- I don't believe him. He______be serious. A: needn't B: mustn't C: may not D: can't
- Don’t worry about him. He can take good care of (__) (him).
- I don't think he is serious,________ A: do I B: is he C: don't I D: isn't he
- I don’t believe what Tony has said because I don’t ________ him. A: believe B: believe in C: look at D: tell
- I don’t believe he knows it, _________? A: do I B: does he C: don’t I D: doesn’t he