12It took us over an hour_______along thestreet

There is no doubt ____ we will host the2010 World Expo successfully.

If we use the new recycling method, a large number of trees _____.[ ]

.—Excuse me_________ did you say you’d like to do,Miss Kilp? — I said I’d better go back to the office.I’m going to meet someone this afternoon

____ do you ___ this book —It is very interesting.