Densely populated cities generate sufficient orders over a small area that they can be aggregated into daily,or even more frequent,deliveries by van.that 在这里引导什么从句吗？是不是状语从句省略了so呢？
Sri Lanka is in shock after more than 200 people were killed in a wave of bomb blasts hit churches and luxury hotels on Easter Sunday.请问这句话里面hit是不是用的有问题？
The above outlined literature works revealed that the potential of using OSA, as a base material in the production of geopolymer composites, was merely investigated, if none.
By 1970, according to a World Wildlife Fund report, only about 4500 tigers survived throughout the world-half of them in India.请问这里的throughout the world-half of them什么意思？作什么成分？
For much of the past year, President Bush campaigned to move Social Security to a saving-accountmodel, with retirees trading much or all of their guaranteed payments for payments depending on investment returns. 这里的trading如何翻译？
He kept order with calm and a big smile and the sheer presence of himself, six-feet-six and with bulging muscles under his coat. 这里的状语并列关系是什么样的呢？都是什么状语？结构有点混乱，还请老师分析分析！谢谢