I’m sorry I got caught in the traffic;________, I could have been here sooner.
The father often buys his son English learning materials, ____at encouraging him to learn English.
---You seem used to sleeping in the street. ---Oh, no. ______, I hate it, but I have nowhere to go for shelter.
One of the sides of the board should be painted yellow,and________.
It ________ at the crossroads ________ he was killed in the accident the other day.
I heard that he ________ for three days. Do you know if he is better now?