{01}It was several minutes _______ we realized what was happening~our dog was trapped in a newly-dug tunnel.
A.since
B.before
C.until
D.while
解析: 试题分析:句意:过了几分钟我们才意识到发生了什么—我们的狗被新挖的隧道困住了。这里使用了句型:It was+一段时间+before…,“要多久…才/就…”,所以选B。 本题选B。 {02}Our parents always tell us to believe in_______we do if we want to succeed.
点击加载更多评论>>