单项选择题

The first ______of the bridge is one hundred meters long.

A．preface
B．span
C．block
D．phase
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单项选择题
______would they believe your explanation that you were late because you were kidnapped
A．In what extent
B．To what extent
C．To which extent
D．In which extent
单项选择题
The novel______, he went to America with his family to have a trip.
A．finished
B．being finished
C．having finished
D．having been finished
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