单项选择题

She ought to stop working; she has a headache because she ______ too long.

A．has been reading
B．had read
C．is reading
D．read
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单项选择题
I shall never forget the day ______ Shen Zhou V was launched, ______ has a great effect on my life.
A．when ... which
B．that ... which
C．which ... that
D．when ... that
单项选择题
Who was it ______ saved the drowning girl
A．since
B．as
C．that
D．he
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