介绍:
20170627
69. What does he do? 他是干什么的？
70. He's a manager. 他是个经理。
71. She must be a model, isn't she? 她一定是个模特，不是吗？
72. I really don't know. 我真不知道。
73. I have no idea about it. 我一点都不知道。
74. Can she be a driver? 她可能是个司机吗？
75. Yes, I think so. 是的，我认为是。
