. Choose the underlined part that needs correction in each of the following sentences. Circle A, B or C.
30. The Great Wall of China is the world’s longer structure. 
       A B C
IV.Fill in each gap with an appropriate word given in the box
calculator quiet hard-working confident next on
deforestation soil noise reduce remote control weatherman rackets cartoons channel
 
31. Hue is a __________________student. She doesn’t say much in class.
32. I am having a Math lesson but I forgot my ___________ I have some difficulty.
33. The bookshelf is ___________to the cupboard.
34. A plane engine can make a lot of noise, so the new airport will increase ____pollution here.
35. Walking to school will help _____________air pollution.
36. We can’t plant any trees because the levels of _________ pollution here are very high.
37. You can use a ....................to change channels.
38. To play badminton you need a shuttlecock, a net and two ............................
39. Daisy is very ___________ to take the test. She is a very good student.
40. My uncle is a ..................... He describes the weather.