His interests extended _____ the fine arts to international politics and philosophy.
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.
I’d prefer _______ if I didn’t have to get up early on Sundays.