问题补充:
Mark Twain school and began to work at the age of twelve.
A. left
B. leaves
C. will leave
D. leave
答案:
(答案→)A. left
B. leaves
C. will leave
D. leave
解析:句意:在十二岁的时候,马克吐温离开了学校,开始工作。结合语境可知本句描述的是过去某时发生的动作,故用一般过去时态,选A。
时间:2018-08-22 18:59:30
Mark Twain school and began to work at the age of twelve.
A. left
B. leaves
C. will leave
D. leave
(答案→)A. left
B. leaves
C. will leave
D. leave
解析:句意:在十二岁的时候,马克吐温离开了学校,开始工作。结合语境可知本句描述的是过去某时发生的动作,故用一般过去时态,选A。