I think _______ our duty to keep our environment clean and tidy.
#53164
A
this
B
that
C
it
D
one
推荐题目
I’m expecting a pet dog for long，but mom has no time to buy _________ for me．
#54897
A
it
B
one
C
this
D
that
--- “Why don’t you go to the Science Museum?” ---“I hear there’s ______ in it.”
#54841
A
something new
B
anything new
C
nothing new
D
new nothing
— He, together with his parents ______going to visit Shanghai in July. How about you?— I'm afraid I have to stay at home _ _.
#54563
A
are; on my own
B
is, by myself
C
is; by my own
D
are; on myself
---How can I get well along with others, father? ---Try to smile to others, boy. That will make __________ much __________.
#54925
A
them, easier
B
them, more easy
C
it, easy
D
it, easier