I have to see the doctor because I ________ a lot lately.[ ]A. have been cou
题型:同步题难度:来源:
I have to see the doctor because I ________ a lot lately. |
[ ] |
A. have been coughing B. had coughed C. coughed D. cough |
答案
A |
举一反三
Joseph ________ to evening classes since last month, but he still can"t say "What"s your name?" in Russian. |
[ ] |
A. has been going B. went C. goes D. has gone |
—Those scientists invented a robot to care for kids! —It"s not surprising. They ________ wonders all the time. |
[ ] |
A. worked B. were working C. work D. have been working |
— How do you find air conditioners made by Haier Group Corporation? — Of high quality. We ______ their products all these years. |
[ ] |
A. sell B. have sold C. have been sold D. have been selling |
Over the past decades, sea ice ______ in the arctic as a result of global warming. |
[ ] |
A. had decreased B; decreased C. has been decreasing D. is decreasing |
— Hi! John, would you like to play football with us? — Oh,I can"t. I ___ my lesson all the morning and still need half an hour. |
[ ] |
A. am reviewing B. have been reviewing C. have reviewed D. reviewed |
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