要说明原因,3Q.1.Tom,toghther with his two sisters,--------------.A.has seated B.has been seated C.have seated D.have been seated2.I think you should end it -------it is too late,or you will be sorry for it.A.before B.after C.so that D.because（

要说明原因,3Q.1.Tom,toghther with his two sisters,--------------.A.has seated B.has been seated C.have seated D.have been seated2.I think you should end it -------it is too late,or you will be sorry for it.A.before B.after C.so that D.because（ 要说明原因 要说明原因 要说明原因. 要说明原因 7.8题,要说明原因 第二题要说明原因 要说明原因,必采 但要说明原因,根据什么 3.4.5题,要说明原因 高一化学,9.10题,要说明原因 恒星会不会发光?要说明原因啊 选择题的第三个要说明原因 铁杵能磨成针吗能/不能要说明原因 JACK TOM & MIKE 誰對老師最不敬?3Q 要说原因哟谢谢 塑料是从什么里面提炼的要说明 原因 人类驯养动物对不对要说明原因,而且要详细.