Last Sunday,when I got to the station,I I had left my ticket at home.
I _______ some schools if I have a lot of money.
--What did Sam say just now?--He said he ______ at that time.
-- My friends always get better grades than I do. What should I do?--
______ Kathy was watching TV, her mother asked her to go shopping.
If there are _______ people driving, there will be ______ air pollution.