45. When I met him the other day, it was the first time we _____ each other since we were at school.
| A．saw | B．had seen | C．were seeing | D．have seen |
__________ parents say and do has a life-long effect on their children.
| A．That | B．Which | C．What | D．As |
__________ matters most in learning English is enough practice.
| A．What | B．Why | C．Where | D．Which |
Choosing the right dictionary depends on __________ you want to use it for.
| A．what | B．why | C．how | D．whether |
Having checked the doors were closed, and ___ all the lights were off, the boy opened the door to his bedroom.
| A．why | B．that | C．when | D．ours1 |
It is none of your business __________ other people think about you. Believe yourself.
| A．how | B．what | C．which | D．when |