问题

We need a new leader for our Helping HandsClub,but I don’tknow_______.—Why not Mary She is always willing tohelp others.
A:what to choose
B:how to choose
C:when to choose
D:who to choose
B:how to choose
C:when to choose
D:who to choose
正确答案是:
同类题型
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I have notebook and two pens in my bag. notebook is for you. —Thank you.