选择适当的不定代词填空。
1. Very _____ of them came to last night's meeting. ( little, few)
2. He wrote few letters to _____ of his family, but he sent  a few cards to _____ of his f'riends.
 ( any, some)
3. If _____ calls, tell him I am busy. ( anyone, someone)
4. My sister gave me two pictures. One is the Great Wall, the _____ is the Ming Tombs. ( another, other)
5. The mother has three sons. _____ of them are teachers. ( both, all)
6. John and Mary have _____ won prizes. ( both, all)
7. The coat is too big. Please show me _____. (other,  another)