用适当时态填空1.I____(lost) my watch yesterday.2.My father _____(read) this book since yesterday.句型转换1.He has lunch at home 否定句：疑问句：2.He has been there (twice)括号提问：翻译句子：1 他们已经打扫了教室吗?2 我们已经认识有二十年了3 打那以后,她一直住在这4 “你曾经到过那里吗?” “不,我从来没到过那里.”

1 lost
2 has been reading
He dosen't have lunch at home
Does he have lunch at home?
How many times has he been there?
1 Have they cleaned the classroom yet?
2 We have known each other for 20 years
3 She has been here since then.
4 Have you been there before? No, I have never been there.

1,lost
2,has been reading
句型转化
1，He doesn't have lunch at home.
Does he have lunch at home?
2,How many times has he been there?
翻译：
1，Have they cleaned the classroom yet?
2,We have known each other for 20 years.
3,She has lived here since then.
4,"Have you been to there yet?""No,I have never been to there".

1.list2.has been reading/ has read1.He doesn't have lunch at home.Does he have lunch at home?2.How many times has he been there?1.Have they cleaned the classroom?2.We have known each other for twenty ...

1.lost
2.has been reading
1.He doesn't have lunch at home./Does he have lunch at home?
2.How many times has he been there?
1.Have they cleaned the classroom?
2.We have been friends for twenty years.
3.She has been living here ever since.
4.Have you ever been there before?
No,never.