A have有两种词性,助动词和实意动词；
助动词是用来构成各种时态的,比如do；
实意动词就是我们平时见的很多的动词；
have后面加了not的话表示此时作为助动词,那么这一句就没有动词了,所以句子是不完整的；
C表示正在进行,更具语义是不合适的；
They ___ mp3s when my mother was a student.
0
0
4个回答
-
00
更多回答
相关问题
-
When my mother ___home,I was reading a book.00
-
my mother was watching TV ______my father came in.A when B a00
-
When I was doing my homework,my mother was cooking dinner.00
-
“ A When I was ten, my mother told me that my voi00
-
My mother hoped__(become) a scientist when she was young.00
-
Sally was a student. It was going to be her mother’s birthda00
-
when I was a pupil my mother told me （ ） teacher said was us00
-
when i was young i 'd listen to my mother's endless story,wh00
-
Both my father and my mother( )interested when they were you00
-
When I was only a child,my mother said that the earth ______00