I got a B in my Physics exam.

我物理考试得了B。

Better than me. I only got a D. My mother must be mad about me.

比我好，我只得了D。我妈妈一定会被我气疯的。

The teacher is so strict. I used to get Bs and Cs.

这个老师太严了，我以前总是得B 和C 。

It's not his problem. We ought to study hard.

不是他的问题，我们应该努力学习了。

physics n.物理，物理学

strict a.严格的;严谨的;完全的，不折不扣的