They were walking along the shore _______ a huge wave appeared out of nowhere, sweeping them out to sea.
#34229
A
as
B
while
C
when
D
though
推荐题目
I had been puzzled over the problem for over an hour without any result, all at once a solution flashed across my mind.
#33232
A
while
B
when
C
then
D
as
We should consider the students’ request _____ the school library provide more books on popular science．
#34411
A
that
B
when
C
which
D
where
We shouldn’t think the question of ________ they are poor or rich is important.
#33396
A
what
B
whether
C
why
D
how
He came to the meeting _____________his serious illness．
#31213
A
inspite
B
evenif
C
asaresultof
D
despite
In time of serious accidents, ________ we know some basic things about first aid, we can save lives.
#30162
A
whether
B
until
C
if
D
unless