I'm afraid the classhas begun.Don't worry.It ---- until the bell--- .A;doesn't begin; rains B; woA;doesn't begin; rains B; won't begin;rings

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I'm afraid the classhas begun.Don't worry.It ---- until the bell--- .A;doesn't begin; rains B; woA;doesn't begin; rains B; won't begin;rings

I'm afraid the classhas begun.Don't worry.It ---- until the bell--- .A;doesn't begin; rains B; woA;doesn't begin; rains B; won't begin;rings
I'm afraid the classhas begun.Don't worry.It ---- until the bell--- .A;doesn't begin; rains B; wo
A;doesn't begin; rains B; won't begin;rings

I'm afraid the classhas begun.Don't worry.It ---- until the bell--- .A;doesn't begin; rains B; woA;doesn't begin; rains B; won't begin;rings
应该 选 B
not ……until ……意思是:直到……才……
遵循“主将从现”.
意思是:恐怕已经开始上课了.别担心,直到铃响了才会上课的.

选B
首先第一个空得是将来时。not until ...直到。。才。。固定搭配
bell是铃声,响是ring,单三是rings
rain这个词是下雨的意思~~
码字不易,望采纳