A teacher may also make a mistake if he or she is not _______.
—My father has decided to ______ smoking. --That’s good news for us.
Yao Ming works hard on his English and ________
--Do you know ______ the soldiers came to Yushu Town? --The roads were badly broken. They had to walk there.
—When did the Shanghai Expo open? —_______May 1st, 2010.
---I’m ______, mum. Can I have something to drink? ---OK. Here’s some cola.