单项选择题

No matter (whatever happens), we're determined (to do our best) and (make) the experiment (a success).

A．whatever happens
B．to do our best
C．make
D．a success

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单项选择题

If you want to become a doctor, you ought to study ______.

A．medicine
B．the medicine
C．literature
D．the literature

单项选择题

By the time the war ______, most of the people had already left.

A．broke out
B．broke up
C．intervened
D．happen

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