Hien tai phan tu, qua khu phan tu, hoan thanh phan tu. 50.They eat so much because they are very hungry. 51.While I was walking. I met my friends. 52.The girl who is reading books is very sociable. 53.Most students didn’t do their homework, they were punished by their teacher. 54.The cakes which were made by my aunt are delicious.
