While my mother________ some washing, I was making  a kite for Mary. 
#40261
A
did
B
was doing
C
is doing
D
does
推荐题目
The police confirmed that the victim was killed at the place _______she _______.
#39988
A
which; found
B
where; was found
C
that; been found
D
which; was found
Linda ______ the space museum after school yesterday.
#39295
A
has been to
B
was going to
C
went to
D
goes
Mr. Smith ____ the village since last year.
#42203
A
left
B
has left
C
has been away from
D
was away from