In the past the children were made ______15 hours a day.
#44973
A
to lock
B
work
C
to work
D
lock
推荐题目
Now computers _________ all over the world .
#44607
A
is used
B
are using
C
are used
D
have use
This kind of medicine ________in a dry and cool place。
#44678
A
keep
B
kept
C
must keep
D
must be kept
In order to make Chongqing more beautiful, lots of trees _____ on both sides of the street.
#44848
A
should build
B
have built
C
must be built
D
will build
Some new teaching buildings ____ in Shunyi last year. 
#44466
A
build
B
are built
C
built
D
were built