—How clean the window is!—Yes, it just now.A、cleaned B、has been cleaned C、was cleaned
____ do you spell "photo"? A. What B. How C. Who
— Are these your books? —No, they aren't. They're____. A. her B. his C. mine
—Is he your father, Kate? —Yes,_____. A. he's B. he is C. she is
Those boys are my ______. A. brothers B. brother C. sisters
—What's your QQ number? —______ 54863. A. It B. It's C. Its