Different styles of English are used for different types of writings.

I have read this book several time.

a- Students have a lot of technical knowledges. b- Students have a lot of technical knowledge.

a- I heard some news that upset me. b- I heard a news that upset me.

I found a lot of informations about Argentina.

a- The teacher told me an interesting information about the new head teacher. b- The teacher told me an interesting piece of information about the new head teacher.

The news were devastating to all of us

I've got a lot of works to do.

a- This research involved one month of students' work. b- This research involved one month of students' works.

Give me an advice.

a- Your compositions are quite good. b- Your writings are quite good.

a- How much time do we have for this project? b- How many time do we have for this project?