What is the best way you think of ______ the environment?
#51117
A
to protect
B
protecting
C
protect
D
protected
推荐题目
Most Chinese students hope ________ homework. If so, they can have much ______time for their hobbies.
#49076
A
to have an hour of; more
B
to have an hour for; most
C
having an hour of; more
D
to have an hour to do; most
Will you please invite him _________ in a writing competition?
#49993
A
joins
B
to joining
C
to join
D
joining