单项选择题

His job ______ a great deal of travelling.

A．obliges
B．requests
C．involves
D．produces
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单项选择题
Teachers should do all they can to ______ on their students to do better rather than criticize them all the time.
A．inspire
B．stimulate
C．encourage
D．spur
单项选择题
The lawyer ______ all about the case before he decided to take it over.
A．told
B．had told
C．has been told
D．had been told
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