单项选择题

(New uses) for plastics (were found) during (the) 1950’s and 1960’s in medicine, space, research, (industrial), and architecture.（）

A.New uses
B.were found
C.the
D.industrial

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单项选择题
When (contented), and occasionally when (hunger), cats (frequently) make a strange (sound).（）

A.contented
B.hunger
C.frequently
D.sound
单项选择题
The (massive) architecture of the ancient Egyptians (was advanced) than (that of) the Sumerians (苏美尔人) and even surpassed that of (later) societies.（）

A.massive
B.was advanced
C.that of
D.later
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