Mum is ____________ eggs. [ ]
A. cook
B. cooking
C. to cook
答案：B
设全集U={1，2，3，4，5}，集合M={1，3，5}，集合N={3，4，5}，则集合（CUM）∩N等于（ ）
A．{4}
B．{2，3，4，5}
C．{1，3，4，5}
D．∅
___ seems enjoyable to you seems troublesome to me.
A．Which
B．What
C．That
D．It
