问题补充：
71. The speaker raised his voice, so we could hear(听见) him.【小题1】our
72. The man standing over there is clearly(我们的) chemistry teacher.【小题2】 hopeless
73. Without glasses, he couldn’t see the words on the blackboard playground(清楚地).
【小题3】
74. He failed his job interview again, and he felt really( with no hope) about the future.【小题4】
75. There are so many students playing basketball in the (a place for students to play on).【小题5】
答案：
解析： 略
