B
解析:由问句“我可以穿牛仔和T恤去参加晚会吗?”可知此处用better表示“当然可以,但裙子可能会更好”,此处是与牛仔和t恤相比较。
B
-helen can i wear jeans and a t-shirt to the evening party
-ok,but a dress might be__BETTER___ a dress might be__BETTER___ than jeans and a t-shirt
B.与穿 jeans and a T-shirt相比,穿a dress更好,所以用better
B: BETTER 更好,更合适