You had better encourage your children to____some of their pocket money for future education .
It is reported that Beijing and Zhangjiakou(张家口)will compete to host the 2022 Winter Olympics, which will _____ China’s social development.
With the Internet widely used, a(an)___change has taken place in the way people communicate with one another.
When Mr. Smith took over the company, it was already heavily______ and had no money to pay the workers.
Children need a lot to grow up, but ________ they need love and care.
Our earth is getting warmer and warmer. It is time for us to_____ the emission(排放) of CO2.