What is the best way you think of ______ the environment?
#51117
A
to protect
B
protecting
C
protect
D
protected
推荐题目
I’m glad___________.
#50315
A
hear from you
B
to hear from you
C
hear a letter from you
D
to hear a letter from you
--How did you help him ___over the difficulties?--I made it by_______ him never to give up.
#50124
A
get, encouraging
B
getting, encouraging
C
to get, encouraged
D
getting, encouraged