【2013贵州安顺】In our school library there _____ a number of books on science, and in these years the number of them _____ growing larger and larger.
—The scarves are all beautiful.I can’t decide which one to choose. —Oh,look at this red one.I think it’s______.
—Ben and Sue aren’t home,are they? —No.They _____to London on business.
There are lots of _____that students have to follow in school.
Fresh food is good for you . But you have to ______it first because sometimes it a little dirty.
Ther will be less pollution ___more people use public transportation .