Question

do all the questions​

Answer 1

C.

1. must

2. should not

3. should not

4. must

5. should not

Answer 2

1. The social networking sites which are popular will definitely change the world.

2.John F .Kennedy who was assassinated in 1963 was the president of the USA

3.He was saying something that I did not understand.

4.His friend who was an architect is very intelligent.

C.

1. must

2.should not

3.must not .

4. must

5.should not