Mary is very particular about her clothes, and nowhere ________a suitable coat yesterday.
After the meeting, she invited us to dinner at her home and treated us _____ many exotic foods we _____ before. It was really a wonderful treat.
_______not to be late for the meeting, we arrived forty minutes _______ the required time, but after _____seemed hours of waiting, we were informed the meeting had been canceled.
The victims of the accident demanded that the case _____ into at once and they _____ a reasonable explanation and a just treatment.
The policeman was ________ abusing his power when performing his duty, but it hasn’t been ______ yet.
Only through constant practice can the ability of using a foreign language be _______.