We ____ hard together to achieve our common goal these years-to build a cleaner,
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| We ____ hard together to achieve our common goal these years-to build a cleaner, safer and healthier world. |
A. have been working
B. are working
C. work
D. have worked |
答案
举一反三
| I won"t tell the student the answer to the math problem until he _____ on it for more than an hour. |
A. has been working
B. will have worked
C. will have been working
D. had worked |
| I have to see the doctor because I _____ a lot lately. |
A. have been coughing
B. had coughed
C. coughed
D. cough |
| Police are now searching for a woman who is reported to ____ since the flood hit the area last Friday. |
A. have been missing
B. have got lost
C. be missing
D. get lost |
| Mother wanted to be a good provider, a role she ______ since her marriage to Father. |
| [ ] |
A. shoulders
B. shouldered
C. is shouldering
D. has been shouldering |
Cathy is taking notes of the grammatical rules in class at Sunshine School, where she _____ English for a
year. |
| [ ] |
A. studies
B. studied
C. is studying
D. has been studying |
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