1 . 用方框中单词的适当形式完成下列句子，每个单词只能用一次。

enhance；consumer；academy；deserve；rare；embarrass；anxious

1. The well-known clown feels deep ________ although he makes the audience laugh.
2. It was a deeply ________ moment when I called her a wrong name.
3. Trust me. Add some drawings to the wallpaper, which will much ________ its attractiveness.
4. David ________ asks questions when he encounters difficulties in study. He thinks instead.
5. I was so embarrassed that I wanted the floor to open up and ________ me.
6. Normally, the students return in September for the start of the new ________ year.
7. The report ________ careful consideration.

3 . College professors are increasingly raising alarm bells about the effects smartphones, laptops, and tablets have on ________ (学业的 ) performance. (根据汉语提示单词拼写）

4 . Students in No. 7 High School have to learn how to balance________(学术的) study and the students activities as there are colourful activities for you to take part in. (根据汉语提示单词拼写）