- Can you tell me when the play ________?- In 1938.[ ]A．was written by B．was

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- Can you tell me when the play ________?
- In 1938.[ ]
A．was written by
B．was written
C．is written by
D．is written

答案

举一反三

It"s known that the paper for books and magazines ________ from wood.[ ]
A．are made
B．is made
C．has been made
D．is being made

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Paper ________ by Cai Lun in China.[     ]
A．was invented
B．is invented
C．invented
D．has invented

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- Do you know a factory ________ here next year?
- Yes. It"s the biggest one.[ ]
A．will build
B．builds
C．is built
D．will be built

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After Dong Hai Bridge ________, it became a new tourist attraction.[     ]
A．completed
B．complete
C．is completed
D．was completed

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—Look! The tree is growing well. When _____?
—Three years ago.[     ]
A. was it planted
B. did it plant
C. will it be planted
D. is it planted

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