the only thing to do was ask him to come.为什么不是the only thing to do was to ask him to come或the only thing to do was asking him to come.能否再说明白一点？
问题描述：
the only thing to do was ask him to come.
为什么不是the only thing to do was to ask him to come或the only thing to do was asking him to come.
能否再说明白一点？
答
这个句子需要指出的是：was和ask 放在一起，本来在英语里面be 动词后面是不能加动词原形的，但前面出现了do，所以把后面的to 省略了。（有do 无to 的某个特殊语法点）。并非句子出现排版错误，或语法错误哦
答
因为前面有do，所以是原型
答
我来告诉你把.你可以把句子变成(The only thing to do) was that (ask him to come )
that 后面必须要跟一个完整的句子,而没有主语要想成为一个句子则必须用祈使句,所以是ask him to come