Everyone should play a part in _____the earth.
#55757
A
save
B
saves
C
saving
D
saved
推荐题目
Please listen to the teacher carefully. Don't ______ the window.
#53757
A
look out
B
look into
C
look out at
D
look out of
You  should  stop____candies  in class
#51947
A
to eat
B
eating
C
eat
D
ate
 --- Where is Mr. Smith?    --- He ________ Guangzhou. He ________ there for a week.
#53346
A
has gone to; has been to
B
has gone to; has been
C
has been to; has gone to
D
has been in; has gone to
Our teacher wants us ______ at school on Mondays.
#61926
A
stay
B
to stay
C
staying 
D
stayed