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Since computers were first introduced in the early 1980s, technology ____ a great deal.
(A) changes
(B) changed
(C) has changed
(D) had changed

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最佳解!
Dory Chao 國三上 (2013/07/13)
(ever) since...後面若接從屬子句時，子句內的動詞用「過去式」(V.....看完整詳解


Since computers were first introduced in..-阿摩線上測驗