--Why are the windows so dirty?--Because we_________them for a long time.A. have cleaned B. haven't cleaned C. didn't clean
— Do you think theof this skirt suits me? —Of course! You always look beautiful in red.
man in a black hat is my PE teacher. He often playsfootball with us.
I don't remember____________ the book yesterday.
Flowers____________ along the road last year.
Miss Lin____________ a lot of work for the poor area since 2010.