---Have all the mysteries been cleared up?--- Almost. But ______ only one question ______.
#90677
A
there remains; answered
B
it remains; to be answered
C
there remains; to be answered
D
it remains; answered
推荐题目
When we saw the road ______ with snow, we decided to spend the holiday at home.
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A
cover
B
to cover
C
covering
D
covered
（天津市河东区201 4年高三二模考试） 6.-What do you think made Jack so cxcited? -______first prize in the national English Speaking Competition.
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A
As he won
B
Won
C
Winning
D
Because of winning
Gunpowder is generally believed __________ in ancient China.
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A
to have invented
B
being invented
C
to have been invented
D
having invented