题目内容
－Be careful!Don't forget you are on a ladder．
－But you are holding it for me, nothing ________．
[ ]
A．
worry about
B．
to worry about
C．
is worried about
D．
worrying about
答案：B
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题目内容
－Be careful!Don't forget you are on a ladder．
－But you are holding it for me, nothing ________．
worry about
to worry about
is worried about
worrying about