Rewrite these sentences in the active 1) all the contracts are signed by the president. 2) her correspondence is read by her every day. 3) we are given a lot of advice by our parents. 4) most of the earth's surface is covered by water. 5) newspapers are bought by them every morning. 6) the lectures on mathematics are not always attended by the students.

1) The President signs all the contracts.
2) She reads her correspondence every day.
3) Our parents give us a lot of advice.

4) Water covers most of the Earth's surface. 5) They buy newspapers every morning. 
6) The students don’t always attend the lectures on mathematics.

1) The President signs all the contracts.
2) She reads her correspondence every day.
3) Our perents give us a lot of advice.
4) Water covers most of the Earth's surface.
5) They buy newspapers every morning.
6) The students don't always attend at lectures on mathematics.