用下列所给短语的正确形式填空

用下列所给短语的正确形式填空
because of；come up；at present；make use of；such as；play a part in；be based on；even if；communicate with；believe it or not
1.Maggie and Lily invited me to ___________their short play which would be shown next month.
2.David says he won't come to the party___________he is invited because his mother is badly ill.
3.________,there is all ice in Antarctic,but it hardly snows.
4.The prices of vegetables have been very high recently______the dry weather in some places.
5.Most Americans like eating fast food,________hamburgers and French fries for lunch.
6.I hope the pain which is being carried out in our city_________will bring us a good result.
7.I still have diffficutly in_______people in English although I have been studying it for years.
8.The TV play，which_______a novel written by Hai Yan,is very popular with young people.
9.When the thief saw a policeman__________to him，he ran away quickly.
10.We should think out a better way to_________the waste water from the factories.