Mark was a student at this university from 1999 to 2003, _____ he studied very hard and was made Chairman of the Students’ Union.A during which time B for which time C during whose timeD by that time
Then professor walked onto the platform and seated himself in a chair, ______ for answering questions.
— Did you know any French before you arrived in Washington? — Never ______ it, actually.
She was such a proud person that she would die ______ she would admit she was wrong.
— Did your sister pass the exam? — She failed and is in low spirits. — I'm sorry for her. — ______.
He is only too ready to help others, seldom, ______, refusing them when they turn to him.