The two economic reports were delivered by our president at the board last Monday and ______was very instructive

——　Have you ever seen a whale alive? ——　Yes, I’ve seen ＿＿＿. 

One of them hasn't prepared __ lessons very well.

—Which of the two T-shirts will you take?—I’ll take       . One is for my brother and the other is for myself.

—Is there ________ in today’s newspaper?—No, there isn’t. All the news is boring.