下列哪个选项是世界十大建筑之一?A. park B. the Great Wall C. home
—Are they watching TV?—Yes, . A.they are B.they aren’t C.they be
— you playing games? —Yes,we are. A.Is B.Do C. Are
How cold ! A.is it B. it is C.it’s
—Is it raining?—No, . A.it is B.it isn’t C.they aren’t
Take out the raincoat and put on. A.they B.them C.it