his mother’s help , the little boy can call her 13635322770
A. With , on
B. With, at
C. With , about
D. At, with
网友回答
A. With , on
(答案→)B. With, at
C. With , about
D. At, with
解析:with带有, 伴随;on在上面;at在一点;about关于. 句意:在他的母亲的帮助下, 这个小男孩能打她的号码13635322770了. 结合语境可知前文表示伴随状况, 下文电话号码前用介词at, 表示数字上的一点, 故选B.