31.The supermarket sells various kinds of things, (从衣物食品到电脑游戏) 32.The new type of machine has been put in service, (让我们年底完成工程成为可能)
" W) D* R, @. {) h9 H/ x33. It is true that humans have an extraordinary genius for working wonders, but (污染仍是当前及未来最严重的问题之一)+ i1 e* |1 ?4 x& v$ o
34. It is true that the world faces problems of pollution, but (这个问题可以通过全球的努力加以控制)7 R* [5 D7 V3 o( R, _; `2 d
35.(在任何一个存在种族歧视的社会里), there will always be tension.36.Some people say that in the next 30 years the population of Antarctica will grow steadily, (印度也同样)/ }- k# F# N5 A# I& [4 W2 S; K
37. Someday, perhaps, (科学家能够准确地预报地震)6 U0 K4 C' {4 N( k1 s; b- E
38.(整夜他清醒地躺在床上)worrying about his financial problems.39.It is widely accepted that (社会的整个结构都依赖于相互信任)7 Y4 W& I. I4 b8 o3 G
40. By six thirty every morning, (操场上满是晨练的学生) |