题目
一道关于完成时的选择题
why are you still working on this project?It's 4 o'clock in the afternoon and you're supposed ____ it by noon.
A.to finish
B.to be finishing
C.to have finished
D.to have been finishing
A怎么不行啊?有必要做完成时吗?
我总是分不清
why are you still working on this project?It's 4 o'clock in the afternoon and you're supposed ____ it by noon.
A.to finish
B.to be finishing
C.to have finished
D.to have been finishing
A怎么不行啊?有必要做完成时吗?
我总是分不清
提问时间：2021-05-05
答案
他们说的都不清楚.BE SUPPOSED TO DO STH 表示应该做某事YOU ARE SUPPOSED TO COME AT NINE.DONT BE LATE.BE SUPPOSED TO HAVE DONE STH表示应该做而没有做(有责备的意思)YOU ARE SUPPOSED TO HAVE COME AT NINE.WHY...
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