1. Give the correct word formation:
1.This knife is.............It can't cut anything (use)
2.Every week, there are two...........from Ha Noi to Nha Trang (fly)
3.Graham hates queuing.He is very.............. (patient)
4.There office equipment needs to be............ (modern)
5.There is no easy............to the problem (solve)
6.They celebrate their............on 4th july (depend)
7.Have you seen the lastest............ for Pepsi (advertise)
8.I feel so.............that I am going to bed (sleep)
9. 8 is............ by 2 and 4 but not by 3 (divide)
10.The baby slept............. (peace)
11.There are many..............parks in Ha Noi (beauty)
12.............is now a serious problem in Vietnam (forest)
13.Hoa has a lot of friends as she is so..............  (friend)
14.This magazine is............read by both teenagers and adults (wide)
15.I hope to speak English as.............as my teacher (good)
16.Vietnam is interested in saving............rescources (nature)
17.We should prepare food.............before turning on the stove (careful)
18...............are concerned about the use of dynamite to catch fish (environment)
19. Ba is very strong. He runs..............than anyone in the class (fast)
20. I like this website because it is.............for me (use)