单项选择题
Let me（）the case carefully before I draw a conclusion.
A.look up B.look into C.look after D.look out
单项选择题 --Are you free in July? --No, I（）with my parents in July.
单项选择题 Next year, I（）plan to go Italy.
单项选择题 （）they are doing has never been done before.
