It was raining heavily. Little Mary felt cold, so she stood ______ to her mother.
_____ his overcoat, the manager went out immediately.
—— Do young people in that country like to be engaged in teaching? —— Not really, for teachers strongly feel that school systems____ them ____.
I wonder how it ________ that they made such rapid progress.
Readers can ___ very smoothly without knowing the exact meaning of each word.
The nurse treated the naughty boy very kindly, but her patience ____ at last.