You didn’t take his advice ____ his advice, you _____ such a mistake

ientists predict that if presenttrends____, women in 400 years will be 2cm shorter and have healthier hearts．

Mrs. Huang often speaks to foreigners, _________ –Yes, she wants to practice her spoken English.

In China, all the students work hard at school _________ going to university for higher education in the future

We are just _____ calling you up _____ you come in.