Many people can not learn any lessons from the mistakes____they get hurt somehow.
| A．whether | B．unless | C．if | D．when |
They are living with their parents for the moment because their own house _________.
| A．is being built | B．has been rebuilt | C．is rebuilt | D．has rebuilt |
As we all know, all living things ________ the sun for their growth.
| A．insist on | B．rely on | C．connect with | D．come on |
--- Tommy, your mum has been out without glasses!
--- Well, take it easy. _______ she is back home for them.
| A．It is long before that | B．It won’t be long since |
| C．It won’t be long before | D．It will be long before |
She can’t get down to work because she was deeply ________ by the news of his death.
| A．affected | B．surprised | C．harmed | D．charged |
It is high time for us to take measures to protect these old traditions and customs before they ___.
| A．die out | B．die away | C．die off | D．die down |