The little boy ________ in the mud all the morning. No wonder he is dirty from
题型:同步题难度:来源:
The little boy ________ in the mud all the morning. No wonder he is dirty from head to foot. |
[ ] |
A.has played B.is playing C.has been playing D.was playing |
答案
C |
举一反三
-That"s the third time he"s won the award in this field. -Yes. He ________ his maximum potential in the past decade. |
[ ] |
A.explored B.is exploring C.has been exploring D.has explored |
I have to see the doctor because I ________ a lot lately. |
[ ] |
A. have been coughing B. had coughed C. coughed D. cough |
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 |
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