（2014山东烟台）You look tired．You’d better________a good rest．

Why not stop _______ a rest—Oh, it’s so exciting that I can’t stop _______ the kite.

As we all know, with the development of science and technology, the earth’s resources are ________ at an alarming rate, so we should make good use of them.

face of various economic uncertainties at home and abroad, the government has carried out ________ reforms to boost the economy.

Once upon a time，a(n)________famous scientist said that life was not easy for any of us but first of all we should believe in ourselves.