She spent a lot of time _________the fire that day.
#50622
A
to put out
B
putting out
C
to put on
D
putting on
推荐题目
There are so many kinds of pens in the shop ,I can’t decide ______.
#50047
A
when to buy
B
where to buy
C
what to buy
D
which to buy
–please don’t forget _______ the window when you leave.--OK.
#49546
A
closing
B
close
C
closed
D
to close
The 6-year-old child is old enough_______ himself. 
#48817
A
to dress
B
to wear
C
dresses
D
wears
It’s the best way         English.
#49072
A
learn
B
to learn
C
learning
D
to learning