I was just talking to Margot when Jackson____.
He wrote a letter ___he explained what had happened in the accident.
China’s education reforms aim to better develop students’ ability to think _____.
—Honey ,this is a present for your birthday.— Ah ! A pair of shoes ,Nike! I think they __comfortably.
David is ___ animal fur ,so he won’t visit anyone who has cats or dogs in the house .
while intelligent people can often ____ the complex ,a fool is more likely to complicate the simple .