unit1 friendship 单项选择题 1.《原创》she had to give the doorman a tip he would help her with her suitcases. a after b before c when d until 《解析》句意：在看门人帮她搬箱子之前，她不得不告诉他一些提示。before“在….之前”。《答案》b 《教材原句》she and her family hid away for nearly twenty-five months before they were discovered. 2.《原创》she attempts to them down only made matters worse. a still b quiet c calm d silent
