It is well known to all that water, ______ enough, can change into ice quickly.
#93753
A
if cooling
B
though to be cooled
C
when cooled
D
when is cooled
推荐题目
Entering the reading room, ______.
#93589
A
Mike and Tom were found seated quietly, doing their homework
B
Mike and Tom were found seating quietly, doing their homework
C
he found Mike and Tom seating quietly, doing their homework
D
he found Mike and Tom seated quietly, doing their homework
A lot of children are used to ______ their time ______ up by their parents and they simply  don’t know ______ with their spare time themselves.
#92648
A
have; full; what to do
B
having; filled; how to do
C
have; filling; what to do
D
having; filled; what to do