The guide told us that he would organize some business men abroad＿＿＿next week. 

The national parks are very important for the protection of these wild animals, which would ______ run the risk of becoming extinct.

It was ______ that they went for a drive in the countryside.

—The earthquake last night was really terrifying.—       , no people were injured or killed, and they escaped in time.

You must keep it _______ in mind that education is the first productivity.