语法填空 (共10小题；每小题1分，满分10分)
阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
Lori:  Good morning, Chuck. Are you here       (wait) for Professor Johnson?
Chuck: Oh, yes. Good morning, Lori. The professor asked me to come here       (have) an interview. Do you know something about job as        teacher’s assistant?
Lori:  Oh, yes. I know all about it        I have work experience in this field. Last year, I did it for a long time.
Chuck: Really? How did you like      ?
Lori:  Well, actually I think it was    (good) I had ever had at school. I was paid nine dollars an hour, which       (be) three dollars more than the school post office paid us.
Chuck: Yeah, I bet this is a good salary. But what did you do?
Lori:  My responsibility was to help Professor Johnson grade the students’ homework. It wasn’t hard and the professor was always available       there were any questions. I      improve myself through doing this job.
Chuck: I think I would enjoy this kind of work. But I’m a little worried about how much            it might take.
Lori:  Only about five or six hours a week and you can do that in your room.
Chuck: It sounds good.