Mr. Black must be worried about something. You can ____ it from the look on his face.

The time _________ I first spend with Nelson Mandela was a very difficult period of my life.

he past 20 years, the Internet hashelped change our world in _____way or another for the better.

preferred to go there by plane, butI hadn’t enough money to pay for the _______.

Rose finished her study in the university and went to___ a good job.