【2012福建福州】— Our classroom____________every day. — So it is. It's our duty to keep it clean and tidy. A. cleans B. is cleaning C. is cleaned
—Look at the young lady in red. Is it Mrs. King? —No, It ________ be her. She is wearing a white dress today.
My host family tried to cook ________ for me when I studied in New Zealand.
—Why are you so tired these days? —Well, I have ________ homework to do.
—We can’t be successful ________ we keep working hard. —I agree with you.
—have you been married? —For twenty years.