过去进行时练习题
二、用动词的适当形式填空。
1.While
we__________
(wait) for the bus,
agirl
__________
(run)
uptous.2.I__________
(telephone)
afriend
when
Bob__________
(come)
in.3.Jim__________
(jump)
onthebusas it
__________
(move)
away.
4.We__________
(test) the
new machine
when
the electricity
__________
(go)
off.
5.She__________
(not
want)
tostay
inbedwhile
theothers
________________
(all,
work)
inthe fields.
6.While
mother
________
(put)
Cathy
tobed,
thedoor
bell
________
(ring).
7.AsI__________
(walk)
inthe pa ...


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