It is important ______ on the road when you are driving．

　　A．concentrating　　B．to concentrate　　C．to concentrated D．concentrated

We invited her to come to the party，but she ______．

　　A．refuses　　B．refuse　　C．will refuse D．refused

You can not imagine how much I ______ on this dress．Is it beautiful?

　　A．paid　　B．booked　　C．cost　　D．spent

“Must I stay at home and take care of her?”“No，you ______．”

　　A．mustn't　　B．won't　　C．can't　　D．needn't

“I did quite well in the school sports meeting．”“______”

　　A．Congratulations B．Don't worry　　C．That's all right D．You are welcome

Do you know what ______ over there?

　　A．will happen　　B．was happened　　C．is happening D．did happen

Tom,______;you must dress yourself．

　　A．you no longer a child　　

B．you no longer are a child

　　C．you are no longer a child　　

D．you are no a child longer

You mustn't give ______ foreign languages for even a day．

　　A．up to study　　B．up studying　　C．in to study D．in studying

Parents don't always allow their children ______ out at night．

　　A．go　　B．to go　　C．going D．went

____ workers is more than eight thousand in this factory．

　　A．A number of　　

B．The number of

　　C．A good deal of　　

D．Plenty of