68.Many solutions（explanations/methods）are being offered here， all of them make some sense（has some validity），but none is very pleasant（adequate enough/quite satisfactory/to our satisfaction），the problem（issue/effects/causes）should be examined（studied/approached/recognized）in a wider context（a new way/depth）
69.There is no easy/logical/quick/immediate/effective）method （solution/approach/answer/remedy）to the problem（question/issue）of …，but…might be useful（helpful/beneficial）.
tack）the problem of…But the common（general/public） recognition（awareness of/commitment to）the necessity（importance/significance）of…might be the first step toward the change of…（on the right way/in the right direction）
71.One’s（Our）first reaction to such suggestions（solutions）is one of surprise（astonishment）.But surprise（astonishment）at the suggestion（solution）itself suggests a starting place.
72.What will happen to/become of…?（How much change will take place，/Whether it is likely of not，）we don’t yet know for certain （no one can say exactly/precisely/nobody really knows）what…，but one thing is certain/clear（the direction is clear）
73.To check（reverse/control）the trend（tendency）is not a（n）light （easy）task（job，）and it requires（demands/involves/entails）a（n）different（alternative）attitude（state of mind/outlook/point of view）./a good （keen/deep）awareness（understanding/perspective）of…
74.It is clear（obvious/evident/apparent/no surprising），there-fore， that the task of…demands（requires/deserves/involves）great（immediate/considerable/considerable/serious/more）attention（efforts/emphasis/consideration）
75.We have done…But we will achieve（accomplish/contribute）more if we proceed（continue）to…
76.To be sure（True），there may be questions（problems/difficulties）we cannot answer（solve/overcome），but if we.
77.The great challenge（urgent problem/great frontier）today is…There is much difficulty（to do），but…
78.We may have a long way（road）to go（travel）before we reach the final goal（destination）.But once we are on the way（road），the chance to reach it is greater.
79.There is no better time to act（start）than right now，for you will never be offered a greater chance（opportunity）than you are at this moment.
80.It remains to be seen whether…，but the prospect（picture/outlook）is not quite encouraging（that rosy）./seems to be quite bleak （of even worse to come）.
