Some years ago, the university’s Physics department ____ the best in the country. The ancient treasure ____ , until it was unexpectedly discovered. Our government ____into ways to lower carbon emissions. Chemicals from factory waste ____ the death of thousands of river fish. A 5G network for faster communication ____ within months.

focus 4 unit 7

由
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?