He _______ to go to Tsinghua University to study after graduating from high school, so he is working very hard.
—Time flies! The wonderful party is over. We'll have to part. —No need to feel blue. _________
Kate had paid him in advance, which _________ was a mistake.
—Is this the painting _________ you offered $ 1,000 for on the Internet? —Yes, I will give you 15% discount if you like it.
Lei Lei was only too ready to help others, seldom, _______, refusing them when they turned to him.
—Oh, must you? Stay a bit longer. It’s been such fun having you. —_________. I’ve got an early start tomorrow morning.