1 . Some Chinese government officers have turned into live streamers (网络主播) to help local farmers to sell products (产品) and ________ (改善，提升) the sales.

3 . You should speak more to __________([im'pru:v]) your spoken English.

4 . —BYD company has announced(宣布) that it will stop producing oil-fueled cars by the end of this year.
—Well, that’s good. It will help ________ the environment.

A．improve

B．change

C．pollute

D．study

5 . Some Chinese government officers have turned into live streamers（网络主播）to help local farmers to sell products（产品）and __________ the sales.

A．provide

B．decide

C．improve

D．avoid

6 . —Simon, I hope you ________ your English.
—Of course I will. Thank you!

A．are improving

B．to improve

C．improves

D．can improve

7 . He ________ (improve) his English a lot since he joined an English club last year.

8 . We're sure that the environment in our city ______ greatly through our work in the near future.

A．improved

B．was improved

C．has improved

D．will be improved

9 . —Some Chinese government officers have turned into livestreamers（网络主播）.
—Yes. They’re trying their best to help local farmers to ____________   product sales.

A．compare

B．improve

C．afford

D．provide

10 . China’s efforts to stop the spread of COVID-19 will ________ the world’s ability to limit the harm in the near future.

A．imagine

B．invent

C．insist

D．improve