You make lunch, ___________ -I'll take care of the baby. A. but B. or C. for D. and

问题描述:

You make lunch, ___________ -I'll take care of the baby. A. but B. or C. for D. and
为什么不选c

for表原因,后面也不可能接I will
C的话应该是 …for I have to take care of the baby