________ seems to be a strong competition in China for senior high students to enter college or university.
He once studied in Zhejiang University, ________he went abroad for further study.
More attention should be paid __________ English.
More than 60 million people in southwestern China ________the drought nowadays as a result of less rainfall, environmental damage and so on
Please don’t do anything harmful ________ our nature, or we humans will have no ________ each other.
What you said just now ________me of that American professor.