问题
选择题
Since we ________ our homework now. Let’s have a rest.
A．do
B．are doing
C．will do
D．have done
答案
答案：D
since 为陈述原因，而根据后文的内容Let’s have a rest.可知事情已经做了，故用现在完成时，故选D
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Since we ________ our homework now. Let’s have a rest.
A．do
B．are doing
C．will do
D．have done
答案：D
since 为陈述原因，而根据后文的内容Let’s have a rest.可知事情已经做了，故用现在完成时，故选D