题目

下面四个命题，其中正确的是（ ） ① 相邻的两个角都互补的四边形是平行四边形 ② 对角线相等的四边形是矩形③ 一组对边平行，另一组对边相等的四边形是平行四边形④ 对角线互相垂直平分的四边形是菱形。 A . ①④ B . ②④ C . ②③ D . ①③ 答案：ADale is a middle school student. His father has a black car, so his father usually ______ him to school in the car. Dale's best friend Ben goes to school by ______， because he thinks it is good for his health. Ben often ______ Dale to ride a bike with him together. Dale thinks Ben is ______. After he gets home, Dale says to his mother, “Mom, I would like to ______ a bike. Would you please buy one ______ me？” His mother smiles and asks, “______ do you want to ride a bike to school？”“First, it's good for my health. Second, there are a lot of ______ on the road, so it is faster(更快的) to ride a bike to school.”“______. Let's go to the supermarket and choose(挑选) one. But you must be ______ to ride a bike on the way to school.”1.A. has B. gets C. tells D. drives2.A. train B. bike C. taxi D. subway3.A. likes B. helps C. asks D. stops4.A. sad B. right C. shy D. nice5.A. draw B. mend C. play D. have6.A. on B. to C. for D. from7.A. What B. How C. Why D. When8.A. policemen B. trains C. subways D. cars and buses9.A. See you B. OK C. Here you are D. Not at all10.A. careful B. excited C. afraid D. dangerous