71. The speaker raised his voice, so we could ______(听见) him.        __________
72. The man standing over there is _______(我们的) chemistry teacher.    __________
73. Without glasses, he couldn’t see the words on the blackboard ________(清楚地).
___________
74. He failed his job interview again, and he felt really________( with no hope) about the future.                 ___________
75. There are so many students playing basketball in the ________(a place for students to play on).                 __________