I’d like to start my own business–that’s ________ I’d do if I had the money.(2011·陕西)

We are confident that the environment ________ by our further efforts to reduce pollution

He is ____our teacher; he is also our bestfriend.

e Jack was sure of the fact,he his opinion

Sixteen-year-olds should not be allowed to drive acar. —-Iagree. They are ____________.