I think _____ necessary to accept his advice because it’s of great ______ to me,
---I don’t know_____________?---In ten minutes.
---Dear me, I broke Lily’s cup.---____.I’ve one exactly the same as hers.You can give it to her.
---Tom, I’m afraid that I can’t catch up with you.---_____.You are sure to make it.
---How well do you know the Opera House?--- I know the place very well. I Sydney many times.
---Remember to turn off the lights before leaving the classroom, children.--- .