题目

手牵手是朋友，写出相拼后的复韵母。i ＋ e ü ＋ e e ＋ r 答案：【1】ie【2】üe【3】er The boy wanted to ride his bicycle in the street, but his mother told him ________． [　　] A．not to B．not to do C．not do it D．do not to