用括号中所给词的正确形式填空(必要时可加助词),使句子表达更准确。
1.I _________(see)Isabel in the aquarium ten minutes ago,now she _________(buy)some souvenirs.
2.They _______(take)some photos in Forbidden City if it _________(not snow)next vacation.
3.Vegetables _________(be)fresh in the market,Mrs. Black often stops _________(buy)some on her way home.
4.I _________(send)a letter to my friend Tom yesterday morning.And now I am looking forward to _________(hear)from her.
5.Keep quiet,please.The scientist _________(give)us a talk on pollutions.
1.saw,is buying 2.will take,doesn't snow 3.are,to buy
4.sent,hearing 5.will give/is going to give