— How much are the two pairs of trousers? — They are not expensive. I think one hundred dollars ______ enough.
#43892
A
is
B
are
C
were
D
was
推荐题目
---- A number of voiunteers _____ willing to teach in China’s rural areas.----- Yes. The number _____ getting bigger and bigger.
#43464
A
is ; is
B
are; is
C
is; are
D
are; are
