－If I’m not mistaken, your birthday is coming up. Has your brother sent you anything?－Not yet. He never forgets, _________.

It has been proved that taking exercise ________ does good to one’s health. 

--People should use public transport instead of their own private cars.--- _______.The roads are too crowded as it is.

—Excuse me, would you mind answering a few questions?—Well, I don’t know．I’m in rather a hurry ________．

 The problem is not _______so easy as you think. It’s far from being settled.