核心问题
Robert is good at English, ____ we all know. A. because B. which C. as D. since 书上给的答案是 C。难道不能选 B 吗？
词典解答
上题的选项 B 是同样正确的, 见 。
Robert is good at English, ____ we all know. A. because B. which C. as D. since 书上给的答案是 C。难道不能选 B 吗？
上题的选项 B 是同样正确的, 见 。