We had todelay the party till next week, ________ we would have something important todo.
We had todelay the party till next week, ________ we would have something important todo.
A.when
B.which
C.at which
D.in that
答案及解析： A
We had todelay the party till next week, ________ we would have something important todo.
A.when
B.which
C.at which
D.in that
答案及解析： A