Do you know the reason why he failed ?—No, he’s a hard-working man___________, he failed finally

The arrangements for the English eveningthis weekend aren’t all_______；we needed another thirty chairs.

Mr. Smith, would you please speak a little more ________ —Sorry! I thought you could follow me.

Most products, ____ which this is one example, sell well, _______

I think there ________ tall buildings inthe future.