_______ many times, he finally understood it.      A.Taught      B.Teaching

_______ many times, he finally understood it.

     A.Taught      B.Teaching   C.Having taught  D.Having been taught

答案

D


解析:

相关题目

A new plan for getting children to and from school is being started by a local
A new plan for getting children to and from school is being started by a local government in Eastern England. This could end the worries of many parents fearful for their children’s safety on the
 If he      his legs in the last training, he      in the coming Wo
 If he      his legs in the last training, he      in the coming World Cup, which he has been longing to compete in.     A. hadn’t hurt;would join        B. didn’t hurt
下列表示四种植物细胞的细胞周期,如果从四种细胞中选择
下列表示四种植物细胞的细胞周期,如果从四种细胞中选择一种用来观察细胞的有丝分裂,最好选用
 We ______ you were in trouble at that time otherwise we would have given you
 We ______ you were in trouble at that time otherwise we would have given you a hand.    A. didn’t know     B. havn’t known       C. don’t know         D. hadn’t know
根据上面的规律求下列各式的值.(10分)⑴.⑵.
根据上面的规律求下列各式的值.(10分)⑴.⑵.
根据汉语完成下列英语句子 1. 你的生日是什么时候?    ___
根据汉语完成下列英语句子 1. 你的生日是什么时候?    ___________________________ is your _____________________________? 2. 你爷爷多大年龄了?    ___________________
碘元素对青少年智力发育影响很大,加碘盐通常在食盐中加
碘元素对青少年智力发育影响很大,加碘盐通常在食盐中加碘酸钾(K1O3)。右图是超市销售的一种加碘盐标签上的部分文字说明。请回答下列问题:   
在中国古代“家国一体”的社会中,忠孝观念源远流长,其
在中国古代“家国一体”的社会中,忠孝观念源远流长,其源头是(    ) A、宗法制          B、郡县制          C、君主专制          

最新题目