31. English is ________ (wide) used around the world.
32. Speak to the old ________ (polite).
33. Can you see the blackboard ________ (clear)?
34. The old man walked ________ (slow).
35. The soldier fought ________ (brave).
36. The teacher ________ (kind) helped me.
37. This is ________ (exact) what I want.
38. I have ________ (recent) read a novel.
39. I ________ (true) believe you are right.
40. ________ (sudden), it began to rain.