Ex 1:

1/ People invented the wheel thousands of years ago.

=> The wheel was invented thousand of years ago.

2/ Are they building a statue of Chu Van An?

=> Is a statue of Chu Van An going to be built?

3/ They will not provide pencils at the test, so please bring your own.

=> Pencils won't be provided at the test, so please bring your own.

4/ Alan's knowledge about Science and Technology doesn't impress me.

=> I'm not inpressed by Alan's knowledge about Science and Technology.

Ex 2.

1/ Traffic jam/ one/ most common/ issue/ big city/ world.

=> Traffic jam is one of the most common issue in big cities of the world.

2/ There/ many/ people/ use/ road/ and/ one/ main reason/ cause/ traffic jam.

=> There are many people using road and it is one of the main reason cause traffic jam.

3/ We/ solve/ traffic problem/ by/ encourage/ people/ use/ bicycle/ rather/ car/ short trip.

=>  We can solve this traffic problem by encourage people using bicycle rather than car for short trip.

4/ People/ use/ public transports/ reduce/ number/ private vehicles/ road.

=> People should use public transports to reduce the number of private vehicles in the road.

5/ Move/ big/ company/ factory/ city/ countryside/ help reduce/ traffic jam.

=> Moving big companies and factories from the city to the countryside  helps reduce traffic jam.