(年北京市西城区高三5月二模试题)31. A person who has never tasted bitter won’t know ______ sweet is.
33. Because of the current economic depression, days are gone when 5-star hotels in Shanghai ______ charge 6,0000 youn for one night.
32. —Could you introdcue me a high quality car? —My pleasure. _______ well even on wet roads, this kind of car is very popular.
31. I am not a heavy drinker, but I like the ______ glass of wine.
30. When you arrive, I ______ in reception for you.
35. So little ________ about science that the lecture was my understanding.