Many of the earth’s plants and animals have already ______ and several other species are endangered．
A．died away B．died out C．died down D．died of
We should always keep in mind that accidents _______ from carelessness while driving．
A．arise B．arouse C．begin D．rise
The graduates ______ into the company usually receive strict training before they start to work．
A．accepted B．admitted C．entered D．received
It was already past midnight and only three young men _____ in the tea house．
A．left B．remained C．delayed D．deserted
Yesterday morning in a city in the USA, a crowd of dustmen went on a strike to ______ complaints about their low pay．
A．sound B．voice C．noise D．talk
Whenever it is, it is right for a student to ______ the school disciplines．
A．see B．watch C．notice D．observe
