请认真阅读小列各小题，并根据上下文语境和所给首字母的提示，写出下列各句空格中的单词，注意保持语义和形式的一致。请将答案写在答题卷上相应题号的横线上。
66. ---Can the plane have taken off on time?
---I’m afraid not. So many flights were p ▲ due to the bitterly cold weather.
67. ---Chinese food or Japanese food? Which is your p ▲ ?
---Neither. I’d like to have some Italian food.
68. ---What did the local government do after the Ya’an Earthquake?
---Well, the first thing they did was to provide a ▲ for the homeless families.
69. ---Excuse me, but can I take the flight with this ticket?
---There should be no problem. Your ticket is v ▲ until the end of this month.
70. ---What impresses you most about Mrs. Green’s garden, the flowers, the bushes or whatever?
---How the garden is l ▲ out.