--- Hello! Is that Tom over there? Long time no see. Let’s say hello to him.---Please _____ in the library.
#52173
A
keep clean
B
keep quiet
C
wait in line
D
drop litter there
推荐题目
The Greens used to live in London and now they ______ in Beijing.
#53737
A
used to live
B
are used to live
C
are used to living
D
are used for living
