In the old days, people lived in caves and they had to make a fire _________themselves warm.
#50642
A
to keep
B
keeping
C
keep
D
kept
推荐题目
I’m new at the party and I don’t have a friend ____.
#51048
A
to talk with
B
talking to
C
to talk
D
speaking to.
Why do you get your hair ______ red? Do you think it's beautiful?
#49941
A
color
B
colored
C
to color
D
coloring
