The computer was used in teaching. As a result, not only________, but students became moreinterested in the lessons.
—Have you heard that George quit his job?—Yeah, but I can't________why he did so.
—Tony, you must have noticed the student who broke the glass.—I'm sorry.I________attentively.
—Sorry for the delay.I got lost in the mountain.—That's OK.You're safe and that's what________.
—Tom has been fired by his boss.—________?As far as I know,he is a hardworking and considerate fellow.
Annoyed by the salesman's bad manner,John chose ________of the two computers on sale and left.