摘要： Tom assured his boss that he would all his energies in doing this new job. A. call forth B. call at C. call on D. call off
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Tom assured his boss that he would ________ all his energies in doing this new job．
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A．call forth
B．call at
C．call on
D．call off
Tom assured his boss that he would _____ all his energies in doing this new job.
A. call forth B. call at C. call on D. call off
The speed ______ Tom drives his car is too high.
| A．in which | B．at which | C．at that | D．in what |
Tom is a promising student. I am sure that with his________effort, he will make a very successful scientist.
| A．usual | B．constant | C．content | D．normal |