单项选择题

I'm tired out. I（）all afternoon and I don't seem to have finished anything.

A. shopped
B. have shopped
C. had shopped
D. have been shopping

<上一题目录下一题>

热门试题

单项选择题

Let's learn to use the problem we are facing（）a stepping-stone to future success.

A. to
B. for
C. as
D. by

单项选择题

Experts think that（）recently discovered painting may be（）Picasso.

A.the；不填
B.a；the
C.a；不填
D.the；a

相关试题