Our school _______ smoking, that is to say, we are not allowed to smoke at school.
| A．allows | B．promises |
| C．objects | D．forbids |
________ the man grew older, he lost interest in everything except gardening.
| A．With | B．Since | C．While | D．As |
You may borrow this book ________ you promise to give it back.
| A．in case | B．so long as | C．as if | D．even if |
I have been keeping that photo ________ I can see it every day, as it always reminds me of my college days.
| A．which | B．where | C．whether | D．when |
Doing your homework is a sure way to improve your test scores, and this is especially true ________ it comes to classroom tests.
| A．as | B．since | C．when | D．after |
The roof fell ________ he had time to dash into the house to save his baby.
| A．as | B．after | C．until | D．before |