Unit 3 How did you go to Hangzhou Lesson 9 同步练习（4份 2份含答案）

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UNIT THREE HOW DID YOU GO TO HANGZHOU Lesson 9
习题 1
一、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 _____...