The man sat ________ the bus, because he is the driver.
----The pen writes well though it doesn't cost much. ---- Let me have a try. So _____.
---Does the child need any help? ----No. He is old enough to _____ himself.
---The artist has got _____ much work to do that he hardly has time to help his wife with the housework. ---That's true. Even on Sundays he is busy with his work.
The children ______ not to play with the fire .
---There's going to ______ a concert in the hall tonight. ---Yes, and the last performance will be given by Wang Fei.