—Fire is very useful to human! —Yes, especially in winter a fire _____________warm.
#62971
A
used to keep
B
can be used to keep
C
is used to keeping
D
was used to keeping
推荐题目
I don’t know what made you       so.
#60052
A
thinking
B
to think
C
think
D
thought
Tom likes _____ to the movies with his friends and _____ sports.  
#61480
A
going, playing
B
go, play
C
going, play
D
go, playing
If you want to listen to music, please _______ the radio first. 
#56136
A
get off
B
get on
C
turn off
D
turn on