—How does your father go to work?—He ________ a bus there every day.
Now the air in Yancheng is than it used to be. Something must be done to stop it.
Miss Liu is English teacher. She teaches English very well.
bad weather ! I can do something but to stay in bed for the whole day.
---How long did it _____ you to work out the difficult maths problems?---I ______ about half an hour on it .
It is very _______ of you to speak in front of all those people .