If there are more animals in a certain area than______ to support them, some of the animals must migrate or starve.

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问题 If there are more animals in a certain area than______ to support them, some of the animals must migrate or starve.

选项 A、food
B、there is food
C、is food
D、the food

答案B

解析 此题的测试点为比较级与主谓一致。句中there are more animal与there is food相对比,A、D两项存在主谓不一致的问题;C项中引导词there省略了,是不符合语法规则的。
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