—— Why? Tom, your shirt is so dirty! —— Mum, I ＿＿＿＿＿ my storeroom downstairs。
#104641
A
cleaned
B
have worked
C
was cleaning
D
have been cleaning
推荐题目
It is most instructive lecture that I _______ since I came to this school.
#101499
A
attended
B
had attended
C
am attending
D
have attended
— My colleague felt quite happy because his solution was closer now to ______．— Congratulations!
#102455
A
having adopted
B
be adopted
C
being adopted
D
be adopted
I am so excited! At this time tomorrow I _____ to Rome, my dream city!
#100633
A
fly
B
will fly
C
will be flying
D
have flown
—Happy Birthday, Ken! Did you invite Jason?—Yes, but he _____ a meeting in New York otherwise he wouldn’t be absent from my birthday party．
#102764
A
is attending
B
has attended
C
was attending
D
attended
.Our team was ahead during the first half, but we _____ in the last ten minutes.
#101853
A
were won
B
were lost
C
were beaten
D
won