题目

下面短文中的画线部分是错误的，请改正，并将正确答案写在右边相应题号的横线上（每空一词，不得改变原文意思）。 Out cities are get bigger and bigger as（因为）more                                  1．________ people move from the countryside in the city．                                                  2．________ There were many reasons why they do this--mostly it is                                3．________ to find job，becau甲、乙、丙三辆小车同时、同地向同一方向运动，它们运动的图象如图所示，由图象可知：运动速度相同的两个小车是 ．