Tense/Grammar point/Usage for:
1. Last weekend I went to the beach with a friend.
2. She is studying French at night class.
3. I'll get the phone!
4. Many tons of tropical fruit are exported from Thailand annually.
5. We like eating bizarre foods.
6. Can you speak any other language?
7. We are playing football on Saturday afternoon.
8. Mozart had mastered the piano by the time he was six.
9. You said that you were busy.
10. Sorry-I'll be washing my hair.
11. I have been studying astronomy for many years.
12. She was washing her hair at the time.