单项选择题

（）he finishes his task, the team leader doesn't mind（）at the work site.

A．So long as ... what time he arrives
B．So far as ... when he arrives
C．As long as ... however late does he arrive
D．Provided ... no matter how long does he arrive

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单项选择题

We could not have fulfilled the task in time if it（）for their help.

A．was not
B．is not
C．had not been
D．has not been

单项选择题

Jane is the only student in the class（）got full marks in the exam.

A．which
B．whose
C．that
D．whom