There are various things on sale, so you can choose____ interests you.
It’s quite obvious that the aging population in China will cause _____heavy pressure on _____whole society in the future.
—Next Monday is my birthday.—Is that so? ________
On July 1st, 1921, the red boat on South Lake in Jiaxing ________ the birth of the Communist Party of China, which marked a new start for Chinese people.
Scientists have discovered amazing evidence showing how the human body rebuilds _______ while we sleep.
—Why didn’t you remind him of the possible danger?—But what _______ otherwise? He never listens to me.