问题

What at that time ? —Playing football.
A:did you do
B:do you do
C:were you doing
D:are you doing
B:do you do
C:were you doing
D:are you doing
正确答案是:
同类题型
Fred plays _____ piano after _____ supper every day.
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I am afraid we will miss the early bus.—Don’t worry. We have _______ time to do it.