Country life gives him peace and happness.That is ___ he can't enjoy big cities 用what 还是why好?
问题描述：
Country life gives him peace and happness.That is ___ he can't enjoy big cities 用what 还是why好?
答
肯定 只能是 why 因为 横线 后面的 表语从句 主谓宾 都有
只能用 关系副词 why
而 如果 变为 in big cities
那么就没有 了宾语 就应用 关系代词 what