The important sports festival, the Olympic Games,        held every          years.
#43937
A
is, five
B
are, three
C
is, four
D
are;two
推荐题目
 This kind of IPod _______ well in China and it is popular with students.
#86013
A
is sold
B
has been sold
C
sells
D
has sold
It’s said that ______ of the water around the world ______ polluted.
#43806
A
two third; has
B
two thirds; have
C
two third; are
D
two thirds; is
One or perhaps more pages _______.
#86176
A
is missing
B
has been missed
C
are missing
D
was missing