_____ of the twins has been there before.
You’d better out for a walk instead of TV.A to go ; to watch B going ; watching C going ; watch D go ; watching
You shouldn’t ___ you hope .Everything will be better.
If I _____ you, I _____ late for school this morning.
--- Look, Mr Green is on the other side of the street. --- It _____ be him.He has gone to London on business.
--- Why don’t you ask him for help? You _____ be good friends.--- We have disagreements and we haven’t talked to each other for a long time.