She lives at school. So she goes home _____ Friday afternoon. [ ]

My classmate Wang Yong always comes up special solutions ____ our math problems.[ ]

_____ is my sister. ______ name is Tina.

I missed the first part of ________ film Avatar.–- What a pity ! You should be here half _______ hour earlier.

Tom was ______ that he couldn’t understand ______ difficult sentence.