life will continue on the earth for millions of years to come will depend on the problem of pollution can be solved.
#30117
A
How /whether
B
That/that
C
Whether / if
D
Whether / whether
推荐题目
The death number in Saturday night’s conflicts between protesters and security forces in Thailand is 19 __________ the number of the injured is 825.
#34767
A
before
B
after
C
when
D
while
Do you believe _____ true ______ you find high wages, you generally find high prices?
#30158
A
that; that
B
that; that what
C
it; when
D
it; that where
____ makes our school proud is _____ more than 80% of the students have been admitted to key universities.
#80628
A
What…because
B
What…that
C
That…what
D
That…because
Mark needs to learn Chinese________his company is opening a branch in Beijing.
#30240
A
unless
B
until
C
although
D
since
Our special thanks to go thousands of volunteers, without ____tireless work, none of this would be possible.
#31125
A
which
B
whom
C
whose
D
that