When do you have science —-I have science Tuesday and Friday.

Dad, science is too hard for me.—Oh, dear, if you keep listening ________ in class and do enough exercises, you’ll find it easy.

Never before in greaterneed of technical experts than it is today

Ratherthan______thevegetablestogobad,hepreferred______themathalfprice. [ ]

___along the quiet road at forty miles an hour,and then an old man suddenly started to cross the road in front of me.