在问老师问题之前请举手。

Please raise your hand before asking the teacher questions.

每次我们问老师问题，他总好像有现成的答案。

Our teacher seems to have a ready-made answer whenever we ask him a question.

当面问老师问题当然好，但网上学校可以让我在某些方面更好地为上大学做准备，因为我必须更加独立。

It's nicer to ask a question face-to-face with a teacher, but in some ways it prepares me better for college because I have to be more independent.