are 同 is 10點=]

we use competers ____ more convenient.(Your sentence is so wrong!)
We use computers.<--------This is a complete sentence.

We use computers + is/are more convenient.<----A big mistake!

我們不能像這樣般用輔助動詞拼湊出一句完整句子。
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You may rewrite your sentence as follows.
1) It is more convenient for us to use computers. <---Better
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取決於邊度?
Examples:
1) Using computers IS more convenient. ( to begin a sentence with v-ing)
Using computers=使用電腦<-------------Singular <==取決於

2) The computers are very new.
The computers=那些 電腦 <==== plural 取決於
The computerS<---- It means " more than one computer".= plural







2009-08-30 23:41:03 補充：
Using computers=使用電腦=((((一個動作)))) It is singular.