1. They (clean) ………………… the beach one week ago.
2. My brother ( collect) ………………… stamps when he was a child .
3. My mother (fly) ………………… to Ha Noi many times but last year she (go) ………………… there by train.
4. I (be) …………………. a teacher for more than ten years.
5. ………………… (Tom/do) his homework yet?
6. Up to now, the teacher ( give ) ………………… our class 5 tests.
7. Last winter, Robin (stay) ..........................with his father in the Alps for three days.
8. She (ask ) ………………… me to tell about him several times.
9. My children (not do) …………………their homework last night.
10. (you/live) ………………… here five years ago?