题目

—You haven't said a word about my new coat, Brenda. Do you like it? — I'm sorry I________anything about it sooner. I certainly think it's pretty on you. A．wasn' t saying         B．don' t say            C．won' t say        D．didn' t say 答案：D已知空间四边形ABCD，连结AC、BD，设M、G分别是BC、CD的中点，则等于(　　)A.                           B.3C.3                             D.2