— Why? Tom, your shirt is so dirty! — Mum, I ＿＿ my storeroom downstairs。
#104430
A
cleaned
B
have worked
C
was cleaning
D
have been cleaning
推荐题目
Normally you could stay with us, but our house ______ at the moment.
#101537
A
is decorated
B
was decorated
C
is being decorated
D
was being decorated
When the sick mother got up, she was surprised to find that her six-year-old daughter _______ in the kitchen.
#99584
A
had cooked
B
has cooked
C
was cooking
D
cooked
With more forests being destroyed, huge quantities of good earth each year.
#102348
A
is washing away
B
is being washed away
C
are washing away
D
are being washed away
---I hear that Thomas ____ his holiday in South Africa. ---Yes. He’s prepared for his trip.
#103193
A
spent
B
has spent
C
is spending
D
was spending
．The highest award was given to Anna, who _____ so hard on the project for years, and at last her efforts paid off.
#103794
A
has worked
B
worked
C
was working
D
had been working