—Where did you get The Frog written by Mo Yan?—I picked it up from a bookshop online if you ________ know.
I was in the middle of my call because I had no more coins to put in the box.
The students running on the playground are all in their uniforms, so it’s hard for you to_____ my sister in them.
As you see , the number of cars on our roads________ rising these days.
Only when I left my parents for Italy ________ how much I loved them.
Up to now, he _______ most of the works by Mark Twain.