1. You can make good use of the new software that ______ yesterday. As you could see, it can
help with your work effectively.
(A) had being tested
(B) was being tested
(C) was testing
(D) testing
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解釋： 主句：You can mak...
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題目解析 這個句子需要填入一個適當的動...
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這道題所需用到的觀念及其延伸: 在這...
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