________________________, and the problem would be straightened out(解决).
#93947
A
A bit more effort
B
Having a little effort
C
If you have a bit more effort
D
There being a little effort
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   , I think, and all the problems could be settled.
#94958
A
If you make more efforts
B
Making more efforts
C
A bit more effort
D
To have made more efforts
He made another wonderful discovery, ______ of great importance to science.
#93713
A
which I think is
B
which I think it is
C
which I think
D
I think which is