I had wanted to help you last night but I couldn't spare any time, for I ______ a composition which

I have to hand in this morning. [ ]

A. wrote

B. was writing

C. had written

D. have written

对于4F27E自动变速器，下列关于2/4档制动带螺栓的描述正确的是哪一项（）

A.使用专用工具，使制动带压至规定位置，然后松开3圈半，则调整完毕

B.固定专用工具，锁上变速箱外壳螺帽，然后拆除专用工具，则调整完毕

C.锁上变速箱外壳螺帽后，测量从螺栓至螺帽面的尺寸，据此来选择制动带螺栓

D.以上都正确