相关考题
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单项选择题
It was well known that Thomas Edison（）the electric lamp.
A.invented
B.discovered
C.found
D.developed -
单项选择题
After stopping for a few minutes, the bus moved（）to its next stop.
A.forward
B.off
C.with
D.on -
单项选择题
The teacher spoke so fast that it was hard for the students to（）what he was saying.
A.take in
B.take out
C.take up
D.take over
