单项选择题

_______ in 1943 _______ the harmful smog made its appearance in Los Angles.

A．Only...that
B．That it was...when
C．It was...then
D．It was...that
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单项选择题
So I went about my job in ________ as to try to kill the two birds with one stone.
A．such a way
B．some way
C．that way
D．so a way
单项选择题
________ earthquake, crawl under the desk.
A．At the risk of
B．On account of
C．In case of
D．In spite of
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