Some wrong sentences, please help me to correct

[Tuyet89]

1. During the break time, they play volleyball on/ in the school yard.

2. I am going to Paris on/ by boat.

3. It’ s imprtant.

4. My brother is visiting/ is going to visit me next month.

5. There are three persons in my family: my father, my mother, and me (or I). Which one is better?

6. He usually has a bread for breakfast.

7. He comes back home/ comes home from school early.

8. Why aren’t you on train now?

[Torsten]

@Tuyet89

• During the break time, they play volleyball on/ in the school yard.

During the break (time), they play volleyball in the school yard.

@Tuyet89

I am going to Paris on/ by boat.

I am going to Paris by boat. (This is possible but not very likely. You usually would go to Paris by train, car, plane or coach.

@Tuyet89

It’ s imprtant.

It’s important.

@Tuyet89

My brother is visiting/ is going to visit me next month.

Both are possible. ‘is visiting’ expresses a higher level of certainty than is ‘going to’.

@Tuyet89

There are three persons in my family: my father, my mother, and me (or I). Which one is better?

Both are possible, ‘me’ might be colloquial and commonly used.

@Tuyet89

He usually has a bread for breakfast.

He usually has bread for breakfast. (The noun ‘bread’ usually is uncountable.)

@Tuyet89

He comes back home/ comes home from school early.

‘back’ is redundant here.

@Tuyet89

Why aren’t you on train now?

Why aren’t you on the train now?