Six men have been trapped in a mine for seventeen hours. If they are not brought to the surface soon they may lose their lives. However, rescue operations are proving difficult. 以上摘自新概念2的一篇课文。请问老师这里prove为什么用现在进行时?证明就证明了...
这道题是否选D?非谓语也有时态变化,后边是过去式,前面是否应该为having been convin: ________that I was right, I went on with the proposal. A. After I concvinved B. After convincing C. Convincing D. Convinced
...me for salt-tolerant rice varieties was established in India to promote the salt-tolerant rice varieties Kala Rata l-24 and Bhura Rata 4-10, and salt-tolerant rice varieties BRI、BR 203-26-2、Sail and others developed in Bangladesh.”是否合适?
拜登就职演讲中有一句We are good people. And over the
centuries, through storm and strife, in peace and in war, we've come so far,
but we still have far to go.请问句中倒数第三个词far的语法成分该怎么解释?还是固定搭配或习惯用法?