The scientists are studying the effects of human activities______the environment.
#29004
A
in
B
at
C
on
D
with
推荐题目
—What do you want to do ________ those old boxes?—To put things in when I move to the new flat.
#25325
A
by
B
for
C
of
D
with
In those days, we had no phones, so we have to keep in touch _________ writing often.
#28930
A
with
B
of
C
on
D
by
With everything needed________，she declared that the party began.
#25606
A
in the place
B
taking place
C
out of place
D
in place
Mary is so crazy _____ that famous singer that her hairstyle is similar _____his.
#26787
A
to; about
B
about; with
C
with; to
D
about; to