Listening to the English program on TV helps ______ his English.A_英语解答

Listening to the English program on TV helps ______ his English.A.improve B.to improve
请问：是哪个选项,为什么?

人气：156 ℃　时间：2020-02-03 04:46:42

解答

B.to improve
help to do
基本翻译
帮助做；有助于
网络释义
help to do:有助于但to也可以省略啊？这里不行