Shopping on line can provide ____ convenience and choice, but not ____ websites
题型：不详难度：来源：
Shopping on line can provide ____ convenience and choice, but not ____ websites are safe enough for shopping.| A．either; both | B．neither; any | C．both; both | D．both; all |
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答案
| D |
解析
| 第一空用both，构成 both...and ，用来连接两个宾语"既方便，种类又多"；第二空用all 与not连用，表示部分否定，"并非所有的网站都安全"，此处无两者之意。 |
举一反三
| He made ________ known to his friends that he didn’t want to enter politics. |
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|
When he arrived, he found ____ the aged and the sick at home.| A．nothing but | B．none but | C．none other than | D．no other than |
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| Many people have been ill from a strange disease these days, we’ve never heard of before. |
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