Mary is very clever and_____ worth teaching , but her brother is not .Look he is now _____ asleep in class.

 Young children seem to master computer games __________. And playing computer games will always make them feel ___________.

We can’t walk there. _________, we must find a taxi.

We should ________ adjust ourselves to the development of our society.

— I’d like to go home now. — Why not stay here for the night? It is so late now. ____, it is raining so hard.