How long do you think it will be _______ scientists succeed in providing a cure for cancer?
#92242
A
when
B
after
C
since
D
before
推荐题目
He must have finished his homework for a long time, _____ he?
#93709
A
mustn’t
B
didn’t
C
needn’t
D
hasn’t
Our neighbor has ________ ours.
#91873
A
as a big house as
B
as big a house as
C
the same big house as
D
a house the same big as
There’s no doubt _____enough concern must be paid to the problem of the stayathome children.
#92189
A
which
B
whether
C
that
D
what
Ten years ago the population of our village was _______ that of theirs.
#92966
A
as twice large as
B
twice as large as
C
twice as much as
D
as twice much as