No one in our class but Tom and I      that a new teacher is going to teach us English．

 The poor ________ living in the mountain ________ top is covered with green trees.                                                     

One or two days ____quite enough to complete the work. ___ you or he going to work with me?

Every possible means ______ to prevent the air pollution, but the sky is still not clear.

Faced with a bill for $10,000, _____.