完成句子
闭着嘴巴吃饭是有礼貌的。
It’s ________ ________ to ________ one’s mouth ________ while eating．
他进来时，所有人的视线都集中在他身上，使得他很尴尬。
All eyes ________ ________ ________ him when he came in, which made him embarrassed．
我们必须降低成本，这样才能将我们产品的价格下调。
We must ________ ________ ________ the cost so that the price of our product can be brought down．
令他们失望的是，他们的努力以失败告终。
To their disappointment, their efforts ________ ________ ________ ________．
根据汉语提示，完成句子。
她没有办法，只得找了个借口离开了。
She had no choice but to ________ ________ ________ ________ and left．
已经采取措施，防止事态恶化了。
________ ________ ________ ________ to prevent things getting worse．
他已经清楚地表示不想参与这件事。
He has ________ ________ ________ that he didn’t want to get involved in it．
你想象不到改变他的主意有多难。
You can’t imagine the ________ you have ________ ________ his mind．
口头相传的广告是最有说服力的。
________ ________ ________ advertising is the most persuasive．
农村人口正迁往大城市，寻求工作的机会。
Countryside people are ________ ________ ________ to big cities for job opportunities．