21. A
22. D
23. T
24. T
25. F
26. F
27. Rising temperatures
28. Yes, it is
29. impression
30. inspired
31. Would you like to go to the park with me?
32. Because of Covid-19, a lot of schools in the world have to close
33. I wish I could speak English well
34. Mary told her brother that he had to wear face masks in public
35. The doctor hasn't met her family for 3 months
36. The heavy rain prevented the mid-autumn festival from taking place