Since nobody is answering the phone，they____________．
A: should have left
B: needn"t have left
C: must have left
D: can have left
A: should have left
B: needn"t have left
C: must have left
D: can have left
举一反三
- “____ he have left yesterday?” Yes, he ____<br/>yesterday.” No, he ____ yesterday.” A: Must; must have left; can’t have left B: Can; can have<br/>left; can’t have left C: Can; must have left; can’t have left D: May; must<br/>have left; shouldn’t have left
- The man （ ）this way, for here are his footprints. A: should have left,should left,must have left,must left
- My key was missing , I___ it in the office . A: should have left B: could have left C: must have left D: need have left
- The light in his office has been turned off. He ___________. A: must have left B: must leave C: should have left D: have left
- He ( ) the school. His cellphone is still on the desk. A: mustn't have left B: can't leave C: needn't leave D: can't have left