Let’s clean the classroom. It’s very ______.
I’m _______ thirsty, can you give me _____ water?
--____ has your grandpa lived here? --Since last year.
--Where is John? --He ____ Beijing. He ____ come back until next week.
—What shape is the American football? —_____ A.It’s an orange B. It’s an oval. C. It’s beautiful
—What do you use the box_____? —I use it_____keep pencils,rulers,pens and so on. A.to, to B.to, forC.for, to