1、Theywerehappywhentheyheardthenews.（改为简单句）Theywerehappy——heardthenews.2、Ilikewearingamask—mynose（填介词或副词）3、砍伐树木能引起土壤风化（英语翻译）

Question

1、They were happy when they heard the news.（改为简单句）
They were happy — — heard the news.
2、I like wearing a mask — my nose（填介词或副词）
3、砍伐树木能引起土壤风化（英语翻译）

Answer 1

1.They were happy to hear the news.(They were happy hearing the news.)2.I like wearing a mask on my nose.3.Cutting down trees can cause soil weathering