问题补充:
— You speak French so well. How long have you learned it?
— I was fifteen.
A. Until
B. Since
C. When
D. Before
答案:
A. Until
(答案→)B. Since
C. When
D. Before
解析:since +一般过去时,相当于用延续性动词,how long应该与延续性动词连用,故选答案为B
时间:2019-12-29 20:59:32
— You speak French so well. How long have you learned it?
— I was fifteen.
A. Until
B. Since
C. When
D. Before
A. Until
(答案→)B. Since
C. When
D. Before
解析:since +一般过去时,相当于用延续性动词,how long应该与延续性动词连用,故选答案为B