Little _______ that the region was rich in natural resources about four decades ago.

32. Buses have routes. They ________ and ________ people at different places on the routes.

When they finally sent the boy to the hospital, he was found ____________ already. How sad it was!

all the required papers, he didn’t answer the questions fluently in class. [ ]

. In crowded places like airports and railway stations, you __________ take care of your luggage.