31．—Bad luck! I have left my dictionary at the dormitory．—__________．

________what we can do, we’ll have to decrease our dependence on oil and reduce our overall energy consumption.[]

__________ take out the trash after dinner—Yes, sure.

We got there early but Sam _________.—- What a _________!

Why didn’t you go to Eric’s party? —I’d love to, but he didn’t me.