— Mary, whose photo is it?—It ______ be Lu’s. Those are her parents.
I like the green coat , ________ my mother likes the red one better . A. and B. but C. so
--Could you please tell me something about your travel in Sydney?
Smoking will_______ your health.
Now many people are________ in playing_______ games on the Internet.
It is important_______ you_______ out for a walk after supper.