1、（2012·陕西卷·23） I______ thank you too much for all your help to my son while we were away from home.
A. won’t B. can’t C. can D. will
【解析】选B 考查情态动词。所填情态动词与too 构成固定句型can’t/couldn’t …too…，意思是：再……都不为过，选B。
2、（2012北京卷·33）We ______ the difficulty together, but why didn’t you tell me?
A. should face B. might face
C. could have faced D. must have faced
【解析】选C。虚拟语气考点，对过去的虚拟，本能……。
