whitefun220

You need to support your ideas with facts and figures.

By and large, the pupils are well-behaved.
'By and large' 的意思和 'in general' 相似，表示大體上。
不能用'By and by'

I'm sick and tired of studying grammar!

I never read the instruction manual. I learned how to use the computer by trial and error.

Yesterday the Prime Minister made an important speech on the subject of law and order.
不能用'legal'是形容詞，而這裏需要一個名詞
不能用'Informations' Information是不可數名詞，所以不能加 's'

Let's settle this argument once and for all.
不能用ever, 'Forever' 是一個詞，不能分開使用。