---Remember how we met for the first time, Dick?
---Of course I do. You _________ to the teachers' office hurriedly and ___________ me.
| A．had walked; weren't noticing | B．were walking; didn't notice |
| C．had been walking; noticed | D．walked; had noticed |
It was totally by chance they discovered the entrance to the underground palace.
| A．when | B．which | C．why | D．that |
The boys by the coach now will take part in the sports meeting of the school next month．
| A．chosen | B．being chosen |
| C．choosing | D．to be chosen |
Schools in the cities are well equipped those in the countryside are poor．
| A．if | B．while | C．so | D．as |
I received a letter，poor spelling made me think it was written by a child．
| A．which | B．that | C．whose | D．who |
The new online library makespossible for students to choose books by smart phone off campus．
| A．it | B．one | C．that | D．this |