The parents can’t explain _______ makes their children so fascinated with their teacher’s lessons.
The guests are looking forward every moment to _______ to China again.
Many students don't want themselves to _______ doing _______ homework.
—English has a large vocabulary, _______?—Yes. Know more words and expressions and you will find _______ easier to read and communicate.
Hong Zhanhui never gives up trying. It is the love and responsibility _______ has driven him to go through hardships and survive in life.
Several witnesses gave accounts of what they had seen. It took many hours to _______ the court of the driver's guilt.