You can’t borrow books from the school library _____you get your student card. A. before B. if C. while D. as
A.A
B.B
C.C
D.D
正确答案是A
You can’t borrow books from the school library _____you get your student card. A. before B. if C. while D. as
A.A
B.B
C.C
D.D
正确答案是A