2 The students have collected old clothes for their charity since last week
3 If we use the car all the time, we will make the air dirty
4 Unless I leave now, I will mis the train
5 If I don't have a quiet room, I won't be able to do anything myself
6 We have had this robot since last week
7 If I don't have a modern robot, I won't be able to do everything myself
8 Minh is very interested in teaching robots
9 The robots in my house is a very good at cleaning the floors
10 People won't have to do all the dangerous thing with the help of robots
11 Although it's raining very hard, the student go to school on time
12 Please, stop your friend from making a lot of noise
13 You shouldn't waste water
14 Because Lan is a hard working student, she gets good marks
15 Ba is the most intelligent in my class
16 Lan's house have three bedrooms and two bathroom
17 This book is the most interesting book I have read
18 ?
19 How long have you had it?
20 We have played volleyball for 10 years
