填空题

Scientists will have to ______________________________ (提出增加世界粮食供应的新方法).

【参考答案】

come up with new methods of increasing the world’s food supp......

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A．He can’t afford the car fight now.B．He will buy the car as soon as he has enough money.C．He thinks someone else has bought the car.D．He thinks someone else has destroyed the car.
A．He can’t afford the car fight now.
B．He will buy the car as soon as he has enough money.
C．He thinks someone else has bought the car.
D．He thinks someone else has destroyed the car.
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