Not once _____ their plan.
A: did they change
B: they changed
C: changed they
D: they did change
A: did they change
B: they changed
C: changed they
D: they did change
举一反三
- 29. If you _____ your mind, please call me at this number before Saturday.A) changed B) would change C) had changed D) change A: changed B: would change C: had changed D: change
- Water ____ into ice. A: will changed B: must be changed C: should change D: can be changed
- In vain ______ try to persuade her to change her plan. A: we did B: did we C: we would D: would we
- It is an irrevocable letter of credit which can not( )． A: change B: be changed C: changing D: changed
- Our city _________a lot over the past few years. A: changed B: has changed C: have changed D: change