---What shall we do with our project, stop or continue, sir? ---________ and try to finish it _______.
There is a common saying in China nothing in the world is difficult for one who sets his mind to it.
The boy slipped out of the room and headed for the swimming pool without his parents' _____.
The audience who come to the live broadcast scene are always chosen ______ in order to be fair.
Our teacher recommended us so useful a grammar book ______ we can make use of while studying English.
—Next Monday is my birthday. —Is that so? ______