__ was once regarded as impossible has come true.
There is little chance that we will succeed in changing the law. ______, it is important that we should have a try.
When it was his turn to deliver(发表) speech, ______, he walked towards the microphone.
She brought with her three friends, none of _____ I had ever met before.
--- I’d like to buy the kind of cloth which _____ easily.--- Will this one ________?
Janet as well as the other young people who ________ sent abroad by the government _______ brought up in a small town.