( )(1)当你向别人介绍海伦是你的妹妹,可以说:A. This is Helen B. Helen is my sister.
()(4) Go ____ to your seats . A. from B. in C. back
()(3) I come _____ Britain . A. to B. at C. from
()(2) _____ here , Tom ! A. Go B. Come C. At
()(1) We have three new friends ____ our class . A. on B. at C. in
( )(7) 如何询问对方的梦想: A.Where do you want to go in the future ? B.What do you want to be in the future ?