While Helen ________ the piano，her mother came in．
#39922
A
was playing
B
is playing
C
played
D
plays
推荐题目
- You seem familiar with Mr. John?-Of course, we_______ together for three years in the 1990s.
#39563
A
have worked
B
were working
C
are working
D
worked
I ____you yesterday afternoon ,but you ____at home .
#37858
A
call ,aren’t
B
am calling ,aren’t
C
called , weren’t
D
calls, weren’t
It is hard to imagine what life __________ in 100 years.
#42032
A
will like
B
will be like
C
likes
D
might like
Every morning my father _____ out for a walk and ____newspaper in the Park
#40283
A
go, read
B
goes, reading
C
goes, reads
D
going, reads
— Tom, is your brother a member of the Swimming Club? —Yes. He _________ it for five years.
#41665
A
has joined
B
has been in
C
joined
D
has joined in