题目内容
5. A long time ago,there were many dinosaurs on Earth. A.A few years ago B.At first
C.Long long ago D.Some years ago
5. C a long time ago意思为"很早以前",与long long ago同义。
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题目内容
5. A long time ago,there were many dinosaurs on Earth. A.A few years ago B.At first
C.Long long ago D.Some years ago