While we _________, we saw a UFO land on a street.
#41211
A
were shopping
B
shopped
C
are shopping
D
shop
推荐题目
—I wonder how much you charge for your services.—The first two are free the third costs $30.
#66661
A
while
B
until
C
when
D
before
__________ she couldn't understand was__________ fewer and fewer students showed interestin her lessons.
#73390
A
What; why
B
That ; what
C
What ; because
D
What;which
His failure made him aware ___ he had made a great mistake in working out the plan.
#70120
A
of that
B
of
C
that
D
that of
Whenever I go to Beijing, ____ is quite frequent, I will go to visit the Great Wall.
#72332
A
where
B
which
C
as it
D
it