ex1

1. working

2.have saw

3.cooking

4.go

Question IV. Give the correct form of the following verbs: ( 1.0pt)
1. We don’t mind (work)working at night
Ta có công thức: sau mind+V-ing
2. My brother (see)has seen this comedy three times
Three times nên dùng hiện tại hoàn thành
3. My brother likes (cook)cooking, but he detests (wash)washing the dishes.
Sau like và detest+V-ing
4. The children used to (go)go a long way to school.
Sau to để nguyên mẫu
Question V. Give the correct form of words in the blankets (1,0pt)
1.The Tay people live mostly in the ( mountain)mountainous regions in the North of Vietnam.
Vùng núi là mountainous 
2. Do the Cham people live in the (south)Southern provinces of the country?
Những tỉnh miền Tây, lại có the nên dùng Southern
3.The Raglai people have a (tradition)traditional musical instrument made of bamboo called the chapi.
Đứng sau là một cụm danh từ, ta phải điền 1 tính từ bổ sung nghĩa cho danh từ musical instrument