单项选择题
Why don't you put the meat in the fridge It will ______ fresh for several days.
单项选择题 —Tom, you make bed before breakfast, ______—All right, mum.
单项选择题 —Susan, go and join your sister cleaning the yard.—Why it's ______ John sat there and did nothing.
单项选择题 If that idea was wrong, the project is bound to fail, ______ good all the other ideas might be.
