单项选择题
Effective, precise, and beneficial communication depends upon grammar and a good vocabulary, the two essential assets for students, but they are not being taught in schools.
A、对学生来说,有效、准确且富有成效的沟通技能取决于语法和词汇这两大有利条件。可是学校并没有教他们这些。
B、有效、准确且富有成效的沟通技能取决于语法和词汇,这是学生的两大法宝,可是学校并没有教学生。