八年级英语选择题（请分别说明理由）

题目

八年级英语选择题（请分别说明理由）
( )1.--Where's your father?--He ______ to Shanghai on business.
A.has gone B.went C.has been D.will go
( )2.--Has the spacecraft reached Mars _______?
--Yes,it has _______ reached Mars.
A.already;just B.yet;just C.yet;yet D.already;already
( )3._______ Project Hope,a lot of children have better lives.
A.Beacause of B.Beacause C.As D.About

答案

1.A （has gone to表人已经去了,没回来.has been to 表人去了回来了.）
2.B yet用在句末表还.just表已经完成的动作
3.A(because接句子,because of 接名次）