3. How do you feel a________ pollution?

2. I want to eat something because I am k_______ of hungry.

1. We should protect e_______ animals.

5. I felt _______(embarrass) when everyone looked at me.

4. I’m considering _____ (study) in Beijing or Shanghai.

3. The students are ______ (confuse) about the ______ (confuse) problem.

2. Sunglasses are used for _____ (keep) out the sun.

1. Here are some things they have learned from ______(scientist ) studies.

V．79-83 CABDD 84-88 ACBAC 89-93 BDDBC

71．invite 72．Unfortunately 73．unable 74．proper 75．lifeguards 76．select 77．danger 78．depend