英语翻译一：汉译英：1.你听过8:00的广播了吗?（提示：broadcast 广播）2.这位教师已经九十多岁了,他毕生致

英语翻译
一：汉译英：
1.你听过8:00的广播了吗?
（提示：broadcast 广播）
2.这位教师已经九十多岁了,他毕生致力于教育事业.
（提示：devote to把……奉献给）
3.自从解放以来,中国发生了巨大的变化.（提示：liberation change 变化）
1.The house is dirty.We( ) it for weeks.
A.didn't clean
B.hadn't cleaned
C.don't clean
D.haven't cleaned
2.My dictionary ( ) .I have looked for it everywhere but still ( ) it.
A.has lost; don't find
B.is missing; don't find
C.had lost; haven't found
D.is missing; haven't found
3.By the time the new pupil ( )enough courage to raise his hand,the bell for the end of the lesson ( ).
A.had gathered; was already ringing
B.was gathering; had already rung
C.gathered; already rang
D.would gather; would already have