5. When I took his temperature, it was two degrees above _____.
A. average B. ordinary C. regular D. normal
D. normal
normal正常的;ordinary普通的;average平均的;regular有规律的,定期的。
6. It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.
A. process B. attention C. measure D. part
D. part.
take part in参加。
本题译文:显然,整个世界正经历着一场社会革命;科学家和技术人员必定是这场革命地主要参加者。
7. These plastic flowers look so _____ that many people think they are real.
A. beautiful B. natural C. artificial D. similar
B. natural.
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