Good English.
All aboard.

1. Build the response using the context. Fixed words stay put; extra tiles may be distractors.
2. Drag or tap tiles. Drop on a filled line to replace it, or back in the bank to remove it. Arrow buttons reorder.
3. Submit as soon as you’re ready. A correct sentence also earns credit at zero, with no speed bonus. A wrong or incomplete sentence costs one life.
4. Visit ten stations or finish when three lives are lost. The clock runs in background tabs; feedback stops it.

Scoring: 100 base points per correct answer, up to 50 for speed, and 15 per streak step (up to 75), multiplied by the level’s points multiplier. Long questions get two extra seconds per tile beyond seven.

点击或拖动词块；固定词不可移动，多余词可能是干扰项。拼好后提交；到0秒时已拼对仍可得分，但无速度奖励。答错或未拼完会扣一次机会。

难度影响时限与分数倍率，连对和速度另加分。切走页面计时仍继续；反馈阶段暂停计时。