单项选择题

In recent years much more emphasis has been put __________ developing the students' productive skills.

A．onto
B．in
C．over
D．on
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单项选择题
______ in the office had made a mistake, and the firm regretted causing the customer inconvenience.
A．Someone
B．Some
C．Anyone
D．One
单项选择题
A season ticket __________ the holder to make as many journeys as he wishes within the stated period of time.
A．entitles
B．grants
C．presents
D．promises
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