Tom thanked his sister  helping him    his lessons.
#49181
A
for; with
B
to; in
C
of; about
D
on; at
推荐题目
The actor is so tall__________ brown hair.
#49034
A
has
B
with a
C
in
D
with
They usually go home ____________.
#49192
A
by a bus
B
on a bus
C
by bus
D
on bus
There are over sixty students in my class.
#51157
A
on
B
fewer than
C
more than
D
a lot of