Smoking ______ in public places in many countries. So you ______ smoke here.
John was walking on air when he knew his father bought him a computer.
More than nine hundred students got into the Jinghong NO.1 Middle School this year.
I have an _______ reading book. Are you _______ in it?
I _______ a museum with my friends at this time yesterday.
—Kangkang, can I borrow your bike? —_______