One of the strengths...,

[Silverobama]

I was discussing the pros and cons of online schools and in-person schools, I thin in-person schools are better and I gave my reasons:

One of the strengths of in-person schools is to strengthen your friendships with your classmates because you can always see them. Another benefit is that teachers would usually postpone the class-is-over time (One class is usually 40 minutes here but in China, it’s 45) because they can better help students with the questions left in the class. (each class students have new questions and teachers will postpone the time of that class to clarify things for students.)

Is my italic sentence natural?

 

[tedmc]

One of the strengths advantages of in-person schools is the opportunity for students to strengthen develop your friendships with your their classmates because you can always see them they are physically present. Another benefit is that teachers would usually postpone the class-is-over time can extend the class/finish time if required.