You will be out of date ____ you keep on studying from time to ti_英语解答

You will be out of date ____ you keep on studying from time to time.
A)if B)unless C)because D)or

人气：201 ℃　时间：2020-01-30 01:55:16

解答

A)if
IF 引导的条件状语从句中用一般现在时代替一般将来时.
“如果你一直不停的学习,你会过时的.”