问题
选择题
—What is your brother doing?
—He is _____ what to do this summer vacation.[ ]
A. looking after
B. helping with
C. thinking about
D. waiting for
答案
答案:C
—What is your brother doing?
—He is _____ what to do this summer vacation.[ ]
A. looking after
B. helping with
C. thinking about
D. waiting for
答案:C