Unit 4 Astronomy the science of the stars
单句语法填空
1．Though injured seriously, he tried to cheer ， hoping to make his parents less worried.
答案：up
2．Her ’t understand what I said.(puzzle) look on her face suggested she didn
答案：puzzled
3．The passengers were warned to watch out thieves.
答案：for
4．New technologies have made it possible (turn) out new products faster and at a lower cost.
答案：to turn
5．As we know, getting angry not only does harm ’s health but also has a bad effect the relationship between people. one
答案：to; on
