模 块 5 unit 13 people 一、语法专项训练用所给单词的正确形式完成下列句子。 1．it was a presidential talk ________(deliver) at a time of economic uncertainty for many american families. 2．lucy has a great sense of humor and always keeps her colleagues ________(amuse) with her stories. 3．a great number of students ________(question) said they were forced to practice the piano. 4．the experiment shows that proper amounts of exercise, if ________(carry) out regularly, can improve our health. 5．the living room is clean and tidy,
