Ex 1:

1,Reusable bags are better than plastic bags because they are made of natural materials

2,It is one of the most popular tourist attactions in Viet Nam

3,Robots can already done many tasks by human do

4,Future robots will interact the ability have beings with to the human

5,Teaching robots can help children improve their English pronunciation

Ex 2:

1,How often do you practice playing table tennis?

2,Why don't we go on a picnic for change?

3,Did you usually play marbles when you were small ?

4,Television attacts millions of viewers because it offers many different interesting programmes

5,Ha Long Bay is Viet Nam 's most beautiful natural wonder

Ex 3:

1,Does your family sometimes play games together

2,A studio is a room where they show different film

3,Nearly all households have a TV in America

4,It is necessary for us to be present at the class discussion on Sunday

5,In spring,we grow different kinds of flowers in our garden