I was     the edge of the canyon. A river was      the bottom of the canyon.
#40598
A
at;on
B
on;in
C
on;at
D
in;at
推荐题目
My sister is           the phone.
#42935
A
taking on
B
talking on
C
walking in
D
having at
I knocked on the door but ________ answered.
#36135
A
somebody
B
anybody
C
nobody
D
everybody
She's just 45, but she has__   white hairs.
#35967
A
a few
B
much
C
lot of
D
a little
 ---- _______do you have sports meetings in your school? ----Once a year.
#42196
A
How often
B
How many
C
How soon
D
How much