We had an anxious couple of weeks _____ for the results of the experiment.
He is such a _____________ teacher that he knows what his students need.
Captain James Cook took _____________ of the islands in 1769 and from that time British people started to settle in New Zealand.
If we go on using energy so wastefully, __________ are that our oil wells will be dried up before new energy sources can be found to replace oil.
— They are quiet, aren’t they? — Yes. They are accustomed ______ at meals.
The number of road accidents and the deaths _______ those accidents______ greatly over the past year.