When I was walking down the street, I saw a plane _____ over my head. [ ]
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| When I was walking down the street, I saw a plane _____ over my head. |
| [ ] |
A. flying
B. to fly
C. flew
D. flies |
答案
| A |
举一反三
| There was a policeman _____ by me. |
| [ ] |
A. to stand
B. is standing
C. stood
D. standing |
-Do you hear her _________ in the next room?
-Yes. It sounds perfect. |
| [ ] |
A. sings
B. to sing
C. singing |
| When I returned home, I saw him _________ on the bed quietly. |
| [ ] |
A. to lie
B. lying
C. lay
D. lie |
| When I went past, I found some women _____ to one another. |
| [ ] |
A. talk
B. talked
C. talking
D. talks |
| His grandma makes a living____vegetables. |
| [ ] |
A. grows
B. grow
C. to grow
D. growing |
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