We are afraid of making mistakes when learning a foreign language, and that is ________ we are quiet in our English classes
A.A. what
B.B. because
C.C. whether
D.D. why
E.D
正确答案是单选题
We are afraid of making mistakes when learning a foreign language, and that is ________ we are quiet in our English classes
A.A. what
B.B. because
C.C. whether
D.D. why
E.D
正确答案是单选题