—Have you finished the book? —No. I’ve r
问题:
—Have you finished the book?
—No. I’ve read up to _____ the children discover the secret cave. [ ]
A. which
B. what
C. that
D. where
—Have you finished the book?
—No. I’ve read up to _____ the children discover the secret cave. [ ]
A. which
B. what
C. that
D. where