—______ do they get a present for their mother?—Because it’s their mother’s birthday.
I took the wrong buss when I came to the city__________.
You’re supposed to_______instead of _______ in Korea.
It’s too cold.Do you mind ______ the window?
I often ________ visit a friend’s house.
John _______ Beijing yesterday. A.arrived at B arrived C.reached to D.arrived in