lack doesn’t believe that her son isable to design a digital camera, ______

Don’t leave the baby at home _____. It’s very _____.

Ken, why do you look so tired—I _____ myself _____ the climate since Icame here.

3Remember, Peter, when you learned to drive a car? ______ you drove more, you got better and betterIt’s the same with Chinese study

They were ________ busy ________ with each other________ the time.