They can't leave until they _____ their work.
A: did
B: are doing
C: have done
D: has done
A: did
B: are doing
C: have done
D: has done
举一反三
- I won’t leave until I ____ my work. A: do B: did C: am doing D: have done
- She much work recently. A: have done B: did C: does D: has done
- You ________ your homework.. A: haven’t done B: have doing C: have not doing D: not done
- I’m rather tied, I __________since this morning. A: was doing housework B: have done house work C: did house work D: have been doing house work
- 她从来没有为他们做过任何事，而他们为她做了所有能做的事情。 A: She has never done anything for them, whereas they have done everything they can for her. B: She has never done anything for them, on the other hand, they have done everything they can for her. C: She has never done anything for them, when they have done everything they can for her. D: She has never done anything for them, as they have done everything they can for her.