71.  What's more, due to globalization, there is something more to do.

72.  So, this is the time for us to popularize the goods and advertise our company in primary school all over the country.

73.  Maybe one of the challenges they must face is time management.

74.  Maybe the love in universities is the most pure and impressive love in one's life.

75.  So, what is the true meaning of happiness?

76.  Above all, this is a good book that is well worth reading, from which we can really learn a lot.

77.  However, study and the environment are not the most essential.

78.  Besides, English culture is a must provided we want to master it.

79.  After all, these students are adults who should take the responsibility of their choices.

80.  First of all, language is a natural expression of what you think.