Drunk driving, which was once a(n) ________ happening, is now under control.
A. actualB. usualC. frequentD. loose
It wasn’t until nearly a month later ________ I received the manager’s reply.
A. sinceB. whenC. asD. that
We should not ________ small mistakes, or they might lead to big accidents.
A. hurtB. ignoreC. recoverD. dislike
—Do you know the most ancient city in China—Xi’an well?
—No, this is the first time I ________ here.
A. had comeB. am comingC. have comeD. came
Our teacher told us that there ________ no end to learning.
A. hadB. isC. hasD. was
Hurry! The plane ________. You know, it ________ at 3:15.
A. takes off, takes off
B. is taking off, takes off
C. takes off, is taking off
D. is taking off, is taking off
