Is everyone happy?回答：A、Yes,it is.B、Yes,they are.应该选A还是B?理由?

Is everyone happy?回答：A、Yes,it is.B、Yes,they are.应该选A还是B?理由? are they hens?a.yes,they are.b.yes,it is. are these bananas mary‘s?yes,（ ）A,it is B,they do C,they are Are these your trousers?—Yes,___.A.it is B.they are C.they'r Are these her erasers?yes,_______are A.it is B.they are C.th Do you think it is right?回答( )A.Yes,I do.B.Yes,it is. Everyone _______ happy.A.is.B.are. Excuse me,are there any bookshops?Yes,().A.it is any B.they Is Jim in black shoes?Yes,( ).A it is B he is C they are D s Is Mary your sister?_____.A.Yes,it is B.Yes,she is C.Yes,he Is Susan her name?A.Yes,she is B.Yes,it is.选什么?为什么? what are beautiful day?A.yes,it is.B.yes.and you