before什麼意思
before和ago的區別是什麼？
ago 和 before 辨析不清，
ago 表示“從現在起的若干時間以前”，意思是“距今……之前”，
before 意思是 在……之前”，常和完成時連用，尤其在間接引語中。
before的例句
Lee was born three days before National Day。
李出生在國慶節的前幾天。（before有時跟狀語從句）
The first meeting was held three years ago。這第一次會議在三年前召開的。
（ago的例句通常跟短句子。並且通常做結尾，和過去式連用。）
練習題
1 。He made a good preparation
____ responding。
A。 before B ago
2。you had to made your decision _____opening fire。
A。 before B ago
3。he had finished his homework one month ___。
A 。before B ago
4。 he had been married three years____。
A 。 before B ago
5。 she bought some flowers ____ she went to party。
A 。 before B ago
答案①before ②before③ago ④ ago ⑤before