按要求完成句子。
Her mother has been a Party member for three years．(改为同义句)
Her mother ________ the Party three years ________．
Miss Gao left an hour ago．(改为同义句)
Miss Gao ________ ________ ________ for an hour．
This factory opened twenty years ago．(改为同义句)
This factory ________ ________ ________ for twenty years．
They have been here since 2000．(对画线部分提问)
________ ________ have they been here?
用所给词的适当形式填空。
The old man ________(die)last year．He ________(die)for a year．
He ________(finish)his homework and is now listening to music．
We ________ just ________(talk)about you．
He ________(not visit)Beijing yet．
How long ________ you ________(stay)at home already?
I ________(not hear)from my friend Lingling recently．