The dog will a trick if you give him a bone.
A: to do
B: doing
C: do
A: to do
B: doing
C: do
举一反三
- The cat will __________ a trick if you give her fish. A: to do B: doing C: do
- We warned him ______ that. A: not to do B: doing not C: to do not D: not doing
- Their hesitation means __________the experiment. A: to give up doing B: to give up to do C: to be given up to do D: giving up doing
- David: “What ………?”Jeff: “I’m trying to fix my calculator.” A: you doing B: you do C: do you do D: are you doing
- —Hi, Mary, haven't seen you for a long time. () —Fine. What about you A: How are you doing B: What are you doing C: How do you do D: What do you do