In the______of proof , the police could not take action against the man .

As she walked along a         , a door suddenly burst open, as though forced by someone behind it.

The children are full of ______. They have been playing all day long without resting.

It is a spectacular __________ as the fireworks are set off and light up the who sky during the Spring Festival.

一 Why do you choose to work in an international travel agency?一 Well, you know, English is my  . So it is my best choice.