一.单项选择
（ ）1.this book is _____ that one ,but ______than that one .
A.as difficult as ;expensive B.as more difficult as;more expensive
C.as difficult as;more expensiv e D.more difficult as;as expensive
（ ）2. I don't know _________ he will come tomorrow. _________ he comes, I'll tell you ．
A. if; Whether B. whether; Whet her C. if; That D. if; If
（ ）3. Could you t ell me _________ the nearest hospital is?
A. what B. how C. whether D. where
（ ）4. Is this the factory __________ you visited the other day?
A. that B. where C. in which D. the one
