Falling into a sleeplike condition, he suddenly felt as though he ________ sinking in
A. was
B. were
C. is
D. had been
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Two decades after liberation, war scenarios ________ Egypt again.
A. harm
B. haul
C. handle
D. haunt
I’d like you to describe to my friend your exciting adventures in Africa ________ you
A. like
B. as
C. as if
D. as though
The world ________ we live is in constant change.
A. where
B. which
C. what
D. that
下列条件可不设室内消防给水为 。
A. 超过六层的单元式住宅和超过五层的其他民用建筑
B. 厂房、库房（除遇水易燃、易爆物品存放点外）
C. 耐火等级为三、四级且建筑体积不3000m3 的丁类生产厂房和建筑体积不超过5000 m3 的戊类生产厂房
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