It was not until yesterday that I realized ____ silly mistakes I had made.
David rode so fast that he couldn’t hitting a passer-by and he fell off the bike.
I’d appreciate if you could turn the radio down. I’m doing my homework.
— If it tomorrow, we’ll stay at home. — It would be boring.
It is bad for a man to smoke in public places where smoking is not allowed.
At last the mother had no choice but ___________ her son herself, though she was quite busy.