The Thai elephants do all the following EXCEPT ______.
A. riding bicycles
B. blowing a mouth-organ
C. playing football
D. having a tug-of-war with people
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A supervisor may be the following EXCEPT your ______.
A. employer
B. boss
C. employee
D. manager
【B9】
A. as
B. because
C. when
D. before
新中国成功地爆炸第一颗原子弹是在()。
A. 1964年10月
B. 1966年10月
C. 1967年6月
D. 1970年4月
【B14】
A. at once
B. had
C. has
D. at all