A number of students ______ playing on the ground but I don't know what the exact number______.
#43873
A
are; is
B
are; are
C
is; is
D
is; are
推荐题目
The first use of atomic weapons was in 1945, and their power ____increased enormously ever since.
#86339
A
is
B
was
C
has been
D
had been.
_____number of the students in our class ______ 40. _______ number of them ______ sporty.
#44225
A
The , is; The, are
B
The, are; A, is
C
The, is; A, are
D
A, are; The, is
Large quantities of polluted water_____ into the sea so that lots of fish died.
#86296
A
is flowing
B
was flowing
C
are flowing
D
were flowing
It’s Sunday morning. We _______ get up early.
#44060
A
haven’t to
B
hasn’t to
C
don’t have to
D
have not to