---We’ve seen many more days of blue skies recently. ---True. But back in 1998, ________ Beijing started its “Defending the Blue Sky” program, the city only ________ about 100 days a year.
#34101
A
which, sees
B
that, saw
C
when, saw
D
and, seeing
推荐题目
Disappointed, I was about to leave ____ something occurred, which ____ my attention.
#31402
A
while, paid
B
and, got
C
before, drew
D
when, attracted
---Did you remember to give Jenny the money?---Yes. ________ I saw her, I'm sure.
#31396
A
So long as
B
So far as
C
The moment
D
Any time
Russia won the host right of the 2018 World Cup England lost it on December 2．
#32143
A
before
B
or
C
while
D
even if
—— The experiment is of particular importance.—— I see. We won’t carry on with it _______ we can get the good equipment.
#33750
A
until
B
unless
C
whether
D
after