_____ the police thought he was the most likely one, they could not arrest him since they had no exact proof about it.
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.
Lawrence Craven, a doctor from the USA, is the author of several published reports, one of _____ introduced the idea in 1953 _____ aspirin could reduce the risk of heart attacks.
I strongly recommend that the information______ in my report ____ to our headmaster without delay.