例句:He ventured large sums of money on speculative stocks and was successful.He quickly accumulated a large amount of assets in this way.为什么sums of后接名词money,不需要用复数 ? (a sum of 和 sums of...
If Newton lived today, he would be surprised by what __D__ in science and technology. A. had discovered B. had been discovered C. has discovered D. has been discovered 这句算不算宾语从句时态要一致?如...
好,For the first time in the modern era, non-Hispanic Whites are officially a minority in California, amounting to a little less than half the population of the state, down from nearly three-quarters...