题目

66. The Chinese people have the t_______ of respecting the old and loving the young. 67. These shirts are so w_______ out that they are hardly worth keeping. 68. He p_______ not to know her but in fact they were in league together. 69. His b_______ in God gave him hope during difficult times. 70. John ________(承认) knowing little about the subject. 71. Shortly after our ________(到达) in London , Lisa became very ill. 72. He is very ___________(挑剔) about the materials for the decoration. 73. Relying too much on mouse clicking makes us lazier and less creative both __________8．（　　）的计算结果是1-x2．A．（x-1）（x+1）B．（1+x）（1-x）C．（1-x）2D．（1+x）2