大学英语作文的结尾句可以根据不同的主题和论点进行选择，以下是一些常见的结尾句型：

总结观点

"In conclusion, the main point is that..."

"To sum up, it is clear that..."

提出建议

"Therefore, it is essential that effective measures be taken to..."

"In my opinion, we should..."

得出结论

"From what has been discussed above, we may reasonably arrive at the conclusion that..."

"Therefore, it is not difficult to draw the conclusion that..."

强调重要性

"It is high time that something was done about..."

"The evidence upon all sides leads to a just conclusion"

展望未来

"Only in this way can we..."

"With the development of society, we will see..."

呼应开头

"As we have seen in the previous discussion,..."

"Returning to the topic, we find that..."

选择合适的结尾句可以使你的作文更加完整和有力。希望这些句型能帮助你写出更好的大学英语作文。