--- Look! It ____ be Jack on the playground.---It ____ be him. Because I saw him enter the school library just now.A. may; mustn’t B. must; can’t C. can; can’t
Now, everybody, please turn to Page _____ and look at the _____ picture.
–Shanghai is the city ______ the 2010 world Expo is held. --So it is a city____ most of us want to vist this summer.
—Do you like watching TV? --Actually not, I prefer ______ to music rather than _____TV.
–Lisa has made great progress these days. --________, and ________.
I’d like a piece of paper____.