单选题 It was ______ to everyone that the child had been badly treated.

单选题 The economic crisis also comes on the ____ of food and fuel crisis.

单选题 We can safely ____ that everyone in this small town has a mobile phone.

单选题 I did not see your cell phone and shoes, so I ____ that you had left already.

单选题 Journalists arrived (hot) on the ____ of the police for news about the accident.

单选题 Rob stood in the hallway, from where he could ____ the happenings on the streets.

单选题 As a diplomat, he has witnessed the birth of the new nation and is well placed to ____ its growth during this critical period of its history.

单选题 The aquarium(水族馆) has some interesting ____ of unusual tropical fish.

单选题 Astronauts have brought back ____ of rock from the moon.