—My son is addicted to computer games. He is hopeless, isn't he?—Yes, _____ he is determined to give up and start all over.
The number of people who speak English ______ large, and a large number of people _______ native speakers.
Only when he failed the exam ________ that he didn’t work hard. (原创)
I knew he failed in the final exam the moment I _______ him crying alone in the classroom.(原创)
If _______, I bet, Milinski will burst into tears.
He was quick and smart, and his brother ______ silly and clumsy.