To learn one or two foreign languages _______ (be) very important_英语解答

To learn one or two foreign languages _______ (be) very important nowadays.

人气：198 ℃　时间：2020-04-27 00:24:27

解答

is,可能令你不确定的是one or two ,但事实上,是To learn one or two foreign languages 做主语,所以是is.