There ______ many people ______ in the office, but now nobody is allowed to.
#74935
A
used to be;smoking
B
used to have;smoking
C
used to be;smoke
D
used to have;smoke
推荐题目
When products made in factories _____, they are thrown away as garbage.
#81801
A
come to an end
B
are put to use
C
are used up
D
wear out
As she was singing,she suddenly _____,which  gave us a big surprise  .
#83192
A
broke down
B
broke out
C
took down
D
got down
The man tried out several means to have those people ______ what he said.
#65047
A
carry on
B
break out
C
stand by
D
get across