You don't know about the difficulty I had ______ the work then at all.
A: done
B: to do
C: for doing
D: in doing
A: done
B: to do
C: for doing
D: in doing
举一反三
- I've done everything I can think of to help her. I don't know what else ______. A: do B: doing C: to do D: to doing
- I don’t know _________. A: why do this B: why having done this C: why doing this D: why we ought to do this
- — I dropped in at your house at about ten last night, but you weren’t in. — I regular exercises at the club. A: did B: was doing C: had done D: have been doing
- I ______ my work by this time yesterday evening. A: did B: would do C: had done D: was doing
- Don't sit there ______ nothing. A: do B: done C: doing D: to do