We had better go back和We better get back

问题描述:

We had better go back和We better get back
这两句的意思应该都是:我们最好回去,但是这两句有什么区别呢?
为什么最好一后不加had?
为什么最后一句不用go back而用get back?能用go back吗?

had better...最好.在口语中,had可省略,但一般连同主语一起省略.如:
你最好小心点.
You had better be careful.
Better be careful.
建议第二种不用,至于go back与get back都可以.