单项选择题

It was a very difficult task, and ______ Burrows would stop to have a smoke.

A．every so often
B．often so every
C．so every often
D．every often so
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单项选择题
It is reported that an oil tanker has sunk ______ the coast of Osaka, Japan.
A．on
B．along
C．off
D．at
单项选择题
Whose ______ was it to make up such a seemingly careful plan
A．idea
B．thought
C．purpose
D．dream
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