—What were you doing this time yesterday?  —I _______ some cleaning at home. 
#41520
A
am doing
B
was doing
C
do
D
did
推荐题目
I asked the teacher if there        an English test the next day.
#40353
A
would be
B
will be
C
will have
D
would have
 The Whites _____ many places of interest last year.
#40273
A
have visited
B
will visit
C
visited
D
visit