She has mastered English grammar and a_ a large vocabulary without the help of a teacher.首字母填空，
问题描述：
She has mastered English grammar and a_ a large vocabulary without the help of a teacher.
首字母填空，
答
应该是acquainted ，和master是同位的，意思是 在没有任何老师的帮助下，她了解并掌握了英语语法和大量的词汇，希望能帮到你啊
答
obtain包含着“努力”、“希望”或“决意”去获得某物的意思。 The She has mastered English grammar and acquired a large vocabulary without
答
acquaints
她在没有老师的帮助下,精通了英语语法并掌握了大量的词汇.
答
also