单项选择题

The secretary worked late into the night,______ a long speech for the president.

A．to prepare
B．preparing
C．prepared
D．was preparing

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单项选择题

—This ruler is three times as long as that one. It is not______ to discuss the question again and again.

A．worth
B．worthy
C．worthwhile
D．worth while

单项选择题

Tony is going camping with______ boys.

A．little two other
B．two little other
C．two other little
D．little other two

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