All the creatures depend on the sun’s rays for the light and warmth which ______ us alive.

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问题 All the creatures depend on the sun’s rays for the light and warmth which ______ us alive.

选项 A、keeps
B、keep
C、kept
D、is keeping

答案B

解析 从句which keep us alive修饰名词rays,而rays为复数,所以选B。
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