请你用所给词的适当形式完成下列句子. |
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. |