we have done a lot to build alow—carbon economy, but it is ____ideal We have to work still harder

I’m sorry I ______ my exercise book at home. —Don’t forget _______ it to school tomorrow, please.

How was your vacation in Seattle—Pretty good. In the evenings I _________ to pubs to enjoy beer.

as much firsthand information as possible,inspectors will hold workshops and distribute questionnaires, ____

________ is exciting news that she has received a doctor’s degree.