（不难）scholars have been searching for the secrets of success这是什么时态?

（不难）scholars have been searching for the secrets of success这是什么时态? be动词变过去式（这个不难吧）快些啊 英语翻译Students who are successful in the Scholars Program excel academically,are engaged in their communities,and are passionate about the focus of their Scholars Program.How have your experiences prepared you to be an asset to the Ohio State S （不难） scholars,policemakers have debated the reason of this phenomenon.麻烦改写成定语从句, 一道英语填空A growing number of scholars in the East and the West （ ）that China's moment has finally arrived.A is declaring B have declared C declared D are declaring为什么答案是D? 不难 不难, 不难, 不难! 不难 不难, senior scholars是什么意思 you have every reason -------(be）happy 英语翻译1：成千上万的农民工涌到深圳找工作（用seek to do sth） 2：原来考试并不难 （用turn out to be） 英语翻译3.B2C E-commerce trust studied by foreign scholars Foreign scholars have studied on trust for a long time and they considered it as the main social capital that deciding the increase of state economy but for substance capital and human ca 英语 难不难 （一个个回答） 线性代数的简单题目（应该不难）