My grandparents like stories ________ have happy ending.
A.that B.who C.they D./
John opened the door ________ because he didn’t want to wake up his parents.
A.heavily B.loudly C.quietly D.angrily
The air quality in this city is much ________than before.
A.good B.better C.best D.the best
The boy has been missing for five days and his parents are worried about his______.
A. attention B. safety C. action D. growth
I go now, or I'll miss my train.
A.can B.might C.must D.could
Mary is leaving ________ Shanghai next week.
A.to B.for C.at D.on