货运首航时间？

Those scientists are now carrying out some _______ on the language of dolphins. They want to find out how dolphins communicate with each other.

According to some_______ by some scholars, lung cancer is caused mainly by smoking.

A large _______ fell and blocked the road.

_______ has it that the movie star committed suicide yesterday.

On the airline ________, I saw that there was a flight to Tokyo at seven o＇clock.

The meeting will be held on ________. There will be no delay.

I am always lost. I really have no ________ of direction.

When president Mar won the election, people said that it was a political ________ from different parties.

The eye is the window of the ________ .

It is dangerous for them to drive on the road at full ________ .