题目

用方框中所给词的适当形式填空，有两项多余。 speak, wear, eat, with, is , run, work, are, have, talk, play, like Mr. White is from the USA. He (1)_____ our English teacher. His classes are very funny. We all (2)______ him. There (3)_______ four people in Mr. White’s family: Mr. White , his wife and his two sons---Tom and Jim. Mrs. White can (4)______Chinese well, and she (5)_______ in a hospital( 医院). Tom and Jim are in our class. They are twins(双胞胎), but they are different. Tom is tall and he likes (6)_______ blue T- shirts. Jim is short and he often wears b一质量为m的物体从倾角为30o、长为L的光滑斜面顶端由静止开始下滑，到底端时的速度大小为v，在这个过程中，重力所做的功为A．           B．              C．            D．