All that can be done _____. [ ]a. has done b. has been done c. have doned. h
题型：专项题难度：来源：
| All that can be done _____. |
| [ ] |
a. has done
b. has been done
c. have done
d. have been done |
答案
| b |
举一反三
| All that can be done ____. |
| [ ] |
A. has been done
B. has done
C. have done
D. were done |
| The wounded ____ by the hospital.They are being well cured. |
| [ ] |
A. have been taken in
C. has been taken in
C. have taken in
D. has taken in |
| Three-fourths of the homework ____ today. |
| [ ] |
A. has finished
B. has been finished
C. have finished
D. have been finished |
| Jane is one of the best students in her class who ____ by their teacher. |
| [ ] |
A. are praised
B. is praised
C. praised
D. praising |
| Teenagers think they _____ to choose their own clothes. |
| [ ] |
A. allowed
B. are allow
C should allow
D. should be allowed |
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