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單項(xiàng)選擇題

He succeeded（）out a lot of things entirely new in the world.

A.in working
B.to work
C.working
D.at working

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單項(xiàng)選擇題

He ran（）the direction of the school.

A.at
B.for
C.in
D.on

單項(xiàng)選擇題

He put forward a theory,（）of great importance to the progress of science of technology

A.I think which is
B.which I think is
C.which is I think
D.I think it is

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