. — Why were you so late for work today? — ____ to the office was not very easy this morning because of the traffic.
How time flies! It has been ten years I moved to Chongqing.
catch the first bus to the Great Wall, we get up early.
Jenny isn’t at home _______. [ ]
I went to the classroom to close the door yesterday. But as soon as I was _______ to the classroom, I found it already _______.