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9. Swimming helps to get the blood (循環(huán)) through the muscles.

8. Something that is d makes you feel worried or upset.

7. Her only brother was killed in a gun b.

6. Our clothes sell so well in this country that we have no need to (出口) .

5. When you go out in the hot sun,you should always put cream on your skin to avoid getting s.

4. In the space marked “o ” she wrote“police officer”.

3. As we all know,metals e when they are heated.

2. After 10 years in prison,he was given his (自由) .

1. Asked his n the young man said British.

用括號內動詞的正確形式(包括動 詞-ing形式和不定式) 完成下面對話。

David: When did you begin 1. (study) English? 

Tony: When I was in high school. I continued 2. (study) it in college.

David: 3. (learn) a language takes a long time. Do you like studying English how? 

Tony: Yes. But I' m shy,and I avoid 4.(talk) in class.

David: You'11 never learn 5. (speak) if you don't practise.

Tony: But I'm afraid of 6. (make).mistakes.

David: You can 't help 7. (make) some mistakes. It's only natural. You can't expect 8. (be) perfect.

Tony: You,re right,of course. How about you? Do you enjoy 9.  (speak) English?

David: Yes. My English is not perfect,but I manage 10.  (communicate) when I need to.But I dislike 11.(do) homework. I

don't mind 12. (fill) in the blanks in a grammar exercise,but I hate 13. (write) compositions.

Tony: Me too. I always put off 14. (do) them until the night before. Also I need to refer to a dictionary many times to finish a composition.

David: When you leam more English,you will stop 15. (use) your dictionary so much.