问题:
What an unforgettable experience! I’ll write it down ______it is till fresh in my memory.
A.before
B.so that
C.while
D.until
What an unforgettable experience! I’ll write it down ______it is till fresh in my memory.
A.before
B.so that
C.while
D.until
A.before
B.so that
C.while
D.until
参考答案: