New ideas sometimes have to wait for years______they are fully accepted.A、whenB

游客2023-11-12 59

问题 New ideas sometimes have to wait for years______they are fully accepted.

选项 A、when
B、before
C、after
D、where

答案 B

解析考查时间状语从句。before引导时间状语从句时表示主句的动作发生在从句动作之前，一般译为“……才……”，句中主句的动作wait发生在accept之前，故选B。when引导的时间状语从句，表示“当……时候”；after引导时则与before相反，表示主句的动作发生在从句动作之后。

转载请注明原文地址:https://tihaiku.com/zcyy/3180920.html

相关试题推荐

随机试题

最新回复(0)

Theirdistributionisalso,sometimes,widelyspaced,inplaces,closelypacked