look at the following sentences and complete them with an appropriate word, phrase or expresion you have learned in this unit.
1. I hate to be a ......., but iI need to borrow your pen for a moment.
2. If we're going to Chicago naxt week, we'd better .....a flight soon.
3. You want to talk to the president?.........that be is my uncle.
4. ........ . I feel the same way.
5. you expect me to just give you a hundred dollars? You.... .
6. John thinks that birds can fly all the way to the moon. he's a ........... .