1.I finish the homework at ease.
2.The age of the students here on average is 10.
3.The ticket is offered for free.
4.We must pay attention to the car.
5.I informed him of the homework.
6.We will attend assembly here on 9:00.
7.You must be responsible for the accident.
8 I have achieved high grades.
9.I have approved the idea right.
10.I'm happy with the dog.