Helen and Mary are good friends. _______often help each other.
#35333
A
Them
B
Theirs
C
They
D
Their
推荐题目
Miss Fang is ________ English teacher. ________ is a good teacher.
#35091
A
our, Her
B
my, He
C
a, She
D
an, She
—How about the pollution in the countryside?—Luckily, it's not as serious as _______ in the big cities.
#35087
A
that
B
it
C
one
D
those
