他们产生了近6吨垃圾。

They generated nearly 6 ___tons of rubbish.

就在这时，我看到一辆二十吨的卡车朝他们疾驰而去。

It was at this point I saw a twenty ___ton lorry speeding towards them.

这艘船最多能装载10吨货物。

The ship can carry up to 10 ___tons of cargo.