1 . Make s________ all the lights in the classroom are turned off before you leave. （根据首字母单词拼写）

2 . See, your computer has broken ________ again! It doesn’t make sense to buy the cheapest brand of computer just to save a few dollars. （用适当的词填空）

3 . He urged them to set a________ （放下，搁置） minor differences for the sake of peace. (根据中英文提示填空）

4 . If you look deep inside yourself, you can finally f______________ out whether you have the physical and mental toughness to face the obstacles. (想清楚，弄明白)

5 . Kids d____________ on their parents for foodand clothing when they are young.

6 . I got this book by c____________ at a second-hand bookshop.

7 . Today, the young generation believes that the cellphone   are ______（取代）their wallets.

8 . If you______ (犹豫）to do something, you will delay doing it.

9 . People need the Internet for some purpose, from finding information and advice on all sorts of topics to c_________ with others who have similar interest.

10 . Not until he took off the sunglasses did I __________ (辨认出) him.