(2013·成都第二次诊断)—Where did you get this bo
题型:选择题
问题:
(2013·成都第二次诊断)—Where did you get this book?
—I picked it up from a secondhand bookshop if you ________ know.
A.must
B.will
C.can
D.shall
(2013·成都第二次诊断)—Where did you get this book?
—I picked it up from a secondhand bookshop if you ________ know.
A.must
B.will
C.can
D.shall