—Will you go camping this weekend? ----Just ____. If it rains, I will stay home.

This website is for those of us who can’t         it to Tibet to enjoy the beautiful scenery.

They weighed the advantages of the operation ______ all the possible risks involved over and over again.

 We must ________ our task, however hard it is.

The best method to _____ the goal of helping the patients with AIDS is to unite as many sympathetic people as possible.