阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

China has seen great benefits since the launch of its carbon trading market a year ago.

The program has played 【小题1】 important role in raising low-carbon awareness. Although it only gets the power generation industry involved now, the initiative of pricing carbon emissions (排放) has boosted the 【小题2】 (develop) of carbon-related services in industries beyond. Right now more than 9,800 companies are providing such services, of which over 1,800 【小题3】 (establish) last year.

Carbon trading is the process of buying and selling permits to send out greenhouse gases. Opened 【小题4】 July 16, 2021, the market now includes 【小题5】 (national) 2,162 power-generating companies, covering about 4.5 billion tons of carbon emissions. That has made China the world’s 【小题6】 (large) market for carbon trading. The program puts carbon emission limits on every unit of electricity a power plant generates. After each cycle of trading, companies 【小题7】 have leftover carbon allowances (额度) can sell them to others. If 【小题8】 (fall) short, they’ll have to buy allowances.

The program has proven its value in motivating companies 【小题9】 (reduce) emissions at a lower cost. However, officials say China needs to make further efforts to improve the support systems, get the market to run smoothly 【小题10】 enhance the quality of carbon emission data.