—Why didn’t you go to play football with us yesterday afternoon? —I _____my mother with the housework then. 
#42102
A
helped
B
was helping
C
had helped
D
have been helping
推荐题目
It’s ten o’clock. Betty _______ piano.
#42454
A
is playing
B
plays
C
is playing the
D
plays the
If he had a map, he _____ get lost in the mountains.
#39875
A
won’t
B
didn’t
C
wouldn’t
D
can’t