两道关于现在完成式的选择题

题目

两道关于现在完成式的选择题
1.(★★★★★)-Susan married Jason last Sunday.
-Really?How long________each other?Not more than a week,I' m afraid.
A.did they know B.have they known
C.have they got to know D.had they known
2.(★★★★)Glad to see you back.How long________in Russia?
A.did you stay B.have you stayed
C.were you staying D.have you been staying选什么

答案

当用how long提问时,要用现在完成时,表示已经完成的动作.
所以,第一题选B
A 和D 排除
C的时态看上去正确,但have they got 的got应该用过去分词gotten.
第二题,选D
用现在完成进行时
表示某一动作开始于过去某一时间,延续或重复地出现至今,或将继续延续至将来.