Ⅰ. 用所给词的适当形式填空(10分)
1. Here are some things they have learned from _______(scientist)studies.
2. Sunglasses are used for _______ (keep)out the sun.
3. The students are _______ (confuse) about the _______ (confuse) problem.
4. I’m considering _______ (study) in Beijing or Shanghai.
5. I felt _______ (embarrass) when everyone looked at me.
