I) 1-c 2-a 3-b 4-a

II) 5-a 6-c 7-c 8-d 9-c 10-b 11-d 12-c 13-b 14-d 15-b 16-d 17-d 18-d 19-b 20-a 21-b 22-b 23-b 24-d

III) 25- does→ is doing 26- at→ to 27- visits→ visit 28- goes→ go

V) 33- His name is Bob

34- there is a desk, a chair, a wardrobe, a bed and a bookshelf

35- the wardrobe is between the desk and the bed

36- there are five pens on his desk

VI) 37- Phuc would like to visit Ayres Rock

38- the Sahara is the hottest desert in the world

39- How about to go to Ha Long Bay this weekend?

40- My sister goes to the supermarket on foot.