Unit 2 Period 4第一题答案
1、answer (v.) answers (n.)
2、caused (v.) cause (n.)
3、cleaning(v.) clean (adj.)
4、iron (n.) iron (v.)
5、sleep (n.) sleep (v.)
6、black (adj.) black (n.)
7、opens (v.) open (adj.)
8、energy (n.) energetic(adj.)
9、easy (adj.) easily (adv.)
10、air (v.) air (n.)
Unit 2 Period 4第二题答案
1、 hands
2 、batteries
3 、cameras
4 、wheels
5 、speaker
Unit 2 Period 4第三题答案
1、don’t need to
2、Was, sold out
3、were used to kill
4、were spread, by
5、What does, look like
6、as clean as
7、what to do
8、to leave school
9、lots of changes
10、because of