英语选择 operation which（）patient exhausted and in need of long period of recovery time are now making them relaxed and cosyA leave B had leave C left D will leave
问题描述：
英语选择
operation which（）patient exhausted and in need of long period of recovery time are now making them relaxed and cosy
A leave B had leave C left D will leave
答
选 C
理由：“are now ”看出句子前半部分描述的是operation过去的特征,即“过去使病人忍受痛苦折磨”,而后半部分“手术现在免除了病人要承受的痛苦”.整个句子形成过去与现在的对比,所以时态用leave的过去式left.