He was busy writing a story, only _____once in a while to smoke a cigarette.
A．to stop B．stopping C．to have stopped D．having stopped
________well prepared you are, you still need a lot of luck in mountain climbing.
A．However B．Whatever C．No matter D．Although
— Catherine, I have cleaned the room for you .
— Thanks. You_______. I could manage it myself.
A．needn’t do B．needn’t have done C．mustn’t do D．shouldn’t have done
It’s helpful to put children in a situation _____ they can see themselves differently.
A．that B．when C．which D．where
— I’ve read another book this week.
— Well, maybe _____ is not how much you read but what you read that counts.
A．this B．that C．there D．it
—How about your journey to Mount Tai ?
—Everything was wonderful except that our car ____twice on the way.
A．slowed down B．broke down C．got down D．put down
