After the exam, my teacher told me that failure ____ the mother of success.
“Excuse me, I want to have my watch fixed, but I can’t find a repair shop.” “I know ________ nearby. Come on, I’ll show you.”
I’ll see to _______ that all these letters will be sent to the post before twelve.
Someone is at the door. ________ must be Mr Smith.
There is only one English-Chinese dictionary in that book-shop. I wonder if you still want to buy _______.
I’ve no idea. I just pretended nobody was at home, so I didn’t ask who _______ was.