We use a pencil for_________.
---- How do you usually go to school, Mary?----I usually go to school _______ a bus.
Don’t leave the baby at home _____. It’s very _____.
This is______difficult problem that few students can work it out.
﹣I think collecting stamps is great fun.﹣__________ We can also learn a lot from it.A. I agree with you.B. No, I don’t think so. C. No, I don’t like it.
Lao Wang ___________ Beijing Opera every morning . Listen, he ___________ in the garden.