--- Where are the students ? How could they keep us waiting for so long? --- They started an hour ago and they____ be here in fifteen minutes, I think.
The art show was being a failure; it was a great success.
The place the bridge is supposed to be built should be the cross river traffic is the heaviest.
Students are always interested in finding out they can go with a new teacher.
–It’s thirty years since we last met. -But I still remember the story, believe it or not, we got lost on a rainy night.
–Who should be responsible for the accident? -The boss, not the workers. They just carried out the order .