73. I used to love that film ______ I was a child, but I don't feel it that way any more. （2008辽宁卷）
A. once B. when C. since D. although
74. Later in this chapter cases will be introduced to readers __ consumer complaints have resulted in changes in the law. （2008江西卷）
A. where B. when C. who D. which
75. -----Have you got any particular plans for the coming holiday?
----- Yes, _______, I’m going to visit some homes for the old in the city. （2008安徽卷）
A. If ever B. If busy C. If anything D. If possible
