用所给词的适当形式填空。 1. Today is my birthday. My mother is going to make a_______ (specially) meal for me. 2. Mary is interested in_______(dance). 3. My brother ________(play) the violin since two years ago. 4. The way people _______(behavior)is different in different cultures and situations. 5. Are the people there_______ (friend) enough? 6. Some children think dogs are good_______(company). 7. It's important to choose subjects that you find_______(interest). 8. This pair of shoes_______(cost)me 120 yuan. 9. Tom is the_______(win) of the concert. 10. It's _______(polite) to cut in line when people do some shopping.