1 . 知道怎样清晰地思考并正确地说出来会增加人的自信。
Knowing________and how to speak correctly gives one confidence.

2 . Class discussion is very important in the UK, but I could not make a great contribution because sometimes I wasn't able to ________ ________ ________ ________ ________(用英语清楚地表达自我).(根据汉语提示完成句子）

3 . 这明显取决于接下来几个月的天气。
This _______ depends on the weather in the coming months.

4 . I can’t hear you __________(清楚地). Please speak _________(稍微大点声). （根据汉语意思填空）