1.Uncle Wang mended the computer yesterday
2.the letter should be written by pencil
3.the word can be looked up by you in the dictionary
4.students can't take Magazines out of the library
5.l'm allowed to watch TV last night
6.computers were used by people in both cities amd towns
7.there are many tourists visit The Great Wall erery year
8.are you allowed to have long hair by your father?