---I hope you don’t mind my sitting here.--- _________. It’s for Mr. Friend.
—Mark,you look so tired. —Oh,I didn’t go to bed________it was 12 o’clock last night.
Lily is over there,and she is talking to a friend________the phone.
I didn’t stop working________it was quite late.
Sometimes most of us probably are angry________our friends,parents or teachers.
David is________than his brother.So he always makes more mistakes.