填空题 She can't blame others.she must pay for her ________blindness.

简答题 Finally the police had to ______ force to break up the crowd .

简答题 The teachers were most________ your performance in the exam . You scored 98 marks whereas most of your classmates failed .

简答题 He claims that the new teaching approach helps to________students ' creative ability.

简答题 Among all the workers interviewed every one agreed that Martin had made an important _________to the company ' s success .

填空题 Rules and regulations should be strictly followed;no one is supposed to________on safety standards.

填空题 An examiner must have some knowledge in testing ; otherwise he cannot ________ his questions clearly .

填空题 He________the boat carefully between the rocks.