| 1 | I went back to my hometown for the first time ( ) five years. | |||
| in | on | at | before | |
| 2 | I had ( ) to do, so I stayed at the library all day. | |||
| a lot of home-works | quite a few home-works | much homework | a number of homework | |
| 3 | He is ( ) boy that his teachers want him to be the school council president. | |||
| a such smart | such a smart | a so smart | so a smart | |