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1、In view of such serious situation, environmental tools of transportation like ____ are more important than any time before。

2、From what has been discussed above, we may safely draw the conclusion that advantages of ____ far outweigh its disadvantages and it will still play essential roles in modern society。

3、This issue has caused wide public concern。

4、A large number of people tend to live under the illusion that . Obviously,they seem to fail to take into account the basic fact that。

5、By taking a major-related part-job, students can not only improve their academic studies，but gain much experience，experience they will never be able to get from the textbooks。