—We should do what we can ________ the endangered animals.—Yes, it’s our duty_________ them.
#48378
A
save; to protect
B
save; protect
C
to save; protect
D
to save; to protect
推荐题目
You’d better _______ too much meat. You are much too fat.
#49121
A
not eat
B
eat
C
not to eat
D
don’t eat
The students enjoy _________ English songs after class.
#50140
A
practice to sing
B
practicing singing
C
to practice singing
D
to practice to sing
The 6-year-old child is old enough_______ himself. 
#48817
A
to dress
B
to wear
C
dresses
D
wears
The child is crying.Please do something to make him__________.
#51072
A
stop to cry
B
to stop to cry
C
stop crying
D
to stop crying