1．Stephen Hawking can’t walk or even speak，_____he has become very succ essful.
A. but B. and C. or D. then
2． She decided _________ a digital camera.
A. to buy B. buying C. bought D. buy
3．Jim. You are late again. --- sorry. I___ next time.
A. don’t B. won’t C. can’t D. am not
4．That dictionary ______ belong to Gina．Tom’s name is on it．
A．must B．can’t C．could
