27. by noon
26. do/try one’s best to do sth. 努力/尽力做某事
25. the price is high/low 价格高/低
24. a high/low temperature 高/低温
23. something cost+钱= something is worth+钱 某物值多少钱
22. say in a low/loud voice 小声地/大声地说
21. come along 跟着来
20. go past 经过/路过
19. go through 穿过(空间/房间/森林等)
18. cross a street =go across a street 过街(穿过表面)