问题
With so much work ______ , I have to stay at home for a whole day and I’m almost at breaking point.
A:done
B:doing
C:to do
D:having done
B:doing
C:to do
D:having done
正确答案是：
同类题型
下列四个选项中，划横线虚词的意义和用法全都一样的一项是（ ）
Don’t eat __________chocolate because there’s ___________sugar in _________.
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________all the stars， the sun is __________to the earth.
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