1. It is a very common and necessary activity to _____________.
2. Knowing _____________ is important.
3. We should change _____________we speak when talking with different people.
4. The expressions you use might depend on ___________ you are speaking to or __________ you 
    know them.
5. If you stop a stranger in the street, we might first say "Excuse me. __________" or "I'm sorry to 
    trouble you but," before asking them for help.

回答下列问题。
4. Where does Robert come from?
    ______________________________________________
5. What do the overseas students study, see and visit during their two-week camp?
    ______________________________________________
6. What is the most exciting part of the trip?
    ______________________________________________

1. We often have a big meal on Mid-autumn evening.

A. lunch
B. supper
C. breakfast
D. dinner

2. They sell lots of good things in their shop.

A. store
B. station
C. house
D. restaurant

3. You are free now. Let's play football.

A. are busy
B. have time
C. have times
D. have no time

4. I like the mooncake with nuts inside.

A. on it
B. in it
C. with
D. round

5. These cakes are too small. I would like big ones.

A. some
B. one
C. cake
D. cakes