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65. Soldiers are supposed to o_______ their orders without question.

63. Although he is a man with a d______, he is hoping to be educated like any able-bodied person.

64. The Student Times is published w______, so students can get a new copy every seven days.

62. The teacher tried to c______ Lucy after she failed in the exam.

30. It is very dangerous to use a cell phone _______ driving on a busy highway.

　 A. after　　　　　　 B. though　　 　　　　C. while　　　　　　 D. since

29. Most people can not _______ rubbish items such as cigarette butts and plastic bags as they are most dangerous to our environment.