______no need ______ the radio as I’ve used to studying with it on.

[单选题]30． Radio is used a lot because__________ _．A．it costs less than TVB．it costs more than TVC．it is not so cheap as TVD． people can't know the news on TV

[单选题]I tried to get outof the business _____I found impossible to carry on.A.why

[问答题] “When I was young，I listen to the radio”歌名是什么？

I need a sweater.A. How are youB. Are you HelenC. What s thisD. Can I help you

[单选题]My favorite radio song is the one I first heard on a thick 1923 Edison disc I _______ at a garage sale.A． trifled with B scraped through C stumbled upon D thirsted for

[单选题]When I was a child I used ______ swimming in the lake.A． to goingB． goingC． to goD． go

[单选题]----I’m afraid I’ve got a bad cold .---- _____.A． Never mindB． keep away from meC． Better go and see a doctorD． You need to eat less food

[单选题]I’vealreadytoldyouthatI’mgoingtobuyit,_________.A．)howevermuchitcostsB)howeverdoesitcostsmuchC．)howmuchdoesitcostD)nomatterhowitcosts

[单选题]16．I need a _________. I want to write something．A． bagB． penC． rulerD． eraser

[单选题]is used to ensure the confidentiality, integrity and authenticity of the two end points in the private network.A．CertificateB．EncryptionC．TunnelD．Presentation