25/100.x + 1/2.x = 12

1/10.x + 1/2.x =12 

(1/10 + 1/2 ).x =12

( 1/10 + 5/10 ).x =12

6/10 = 3/5.x = 12

               x = 12 : 3/5

                x = 12 . 5/3

                x = 20

1. He fell in the river but he was saved from drowing byhis friend.(save)
2. Can you give me some advice on where to buy a good laptop?(buy )
3. Why don't you get your brother to wash the dishes ? ( wash)

II. Choose the underlined word or phrase in each sentence below that needs correcting (1.0 point).

16. What a pity. I have to look at => after my little brother, so I can't go to the cinema tonight.
17. The children decided to cancel their camping trip therefore => because the weather was too bad.

18. If Caroline doesn't take a raincoat with her, she would => will get wet on the way to school.

19. Mike said => told me that he would spend his summer holiday in Vietnam the following month.

20. Jane, who accompanied by her classmates, are taking part in an English speaking contest tomorrow morning.