It was brave of the policemen to get over all the difficulties in that case .Which of the following is correct for the underlined word in the sentence?
Call Mary____ 333-6241,A. at B. to C. in
____ 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