选择题：While Mr. Johnson was away on vacation, a lot of l

题目内容：

While Mr. Johnson was away on vacation, a lot of letters _____ on his desk.　
(A) accelerated
(B) accessed
(C) accustomed
(D) accumulated

参考答案：

_________ table tennis was accepted as a regular p

_________ table tennis was accepted as a regular part of the Olympic Games.A.Not

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[多选题,10分] There will be vision phones _______ the end of this century.A.byB.atC.