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III. Key structures. 关键句型。
A) Underline the infinitives in the passage. 画出课文中的动词不定式。
B) Give the correct forms of the verbs in parentheses. Do not refer to the passage until you finish your exercise. 用括号中动词的正确形式填空，完成练习后再对照课文，核对你的答案。
1. I was a bit nervous before I arrived here, but there was no reason
2. They go out of their way
3. So she actually learned how
4. She always talks to me in French
5. My biggest challenge is learning how
6. Another thing is that it's impolite
7. I have to say that I find it difficult
A) Underline the infinitives in the passage. 画出课文中的动词不定式。
B) Give the correct forms of the verbs in parentheses. Do not refer to the passage until you finish your exercise. 用括号中动词的正确形式填空，完成练习后再对照课文，核对你的答案。
1. I was a bit nervous before I arrived here, but there was no reason
to be
(be).2. They go out of their way
to make
(make) me feel
(feel) at home.3. So she actually learned how
to make
(make) Chinese food!4. She always talks to me in French
to help
(help) me practice
(practice).5. My biggest challenge is learning how
to behave
(behave) at the dinner table.6. Another thing is that it's impolite
to say
(say) you're full.7. I have to say that I find it difficult
to remember
(remember) everything, but I'm gradually getting used to it.答案
1. to be 2. to make, feel 3. to make 4. to help, practice 5. to behave 6. to say 7. to remember
