时态填空。 1. He______ (go) to America the year before last. 2. — What you ______ (do)? — I (be) a teacher. 3. Do you like ______ (drink) milk? 4. He ______ ______ (not have) his supper yet. 5. We ______ (see) Uncle Li tomorrow. 6. Joan's mother often ______ at four, now she ______ (cook). 7. He (read) a book when the accident ______ (happen). 8. ______ (travel) by air is very fast. 9. Let us ______ (wait) outside. 10. The teacher told us ______ (not talk) any more.