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
It’s very nice ______ you ______ my parents your best wishes.
#49139
A
of ; sending
B
of ; to send
C
for ; sending
D
for ; to send
You must be tired. Why not_________ a rest?
#50811
A
to stop to have
B
to stop having
C
stop to have
D
stop having
Michael learned basketball his father.
#49731
A
playing; from
B
to play; from
C
playing; with
D
to play; with