Mr. Green is used to_________ two apples after lunch every day.
A、eatB
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I am ____grateful for the many kindnesses you have shown my son.
All we want to do ______ to find enough water _______the horses.
It’s necessary _________ us all to ________
One of the requirements for a fire is that the material ____to its burning temperature.
The first step in the study of any language is observing and ____ precisely what happens when native speakers speak it.
