The first use of atomic weapons was in 1945,and their power___inreased enormously ever since.A.is B.was C.has been D.had been我选了C 是因为前后两句时态并列都是过去吗?

when alice first came to china ,she could not use the chopsticks—— Ato eat B eating Cto eat with use a person's title until the use of first name is welcomed. 准确的翻译? From the first use of the rochet to carry satellites 这篇阅读理解的答案 use前面为什么要加the,另外use后面为什么要用of,the use of 是词组吗Rowland Hill ,a schoolmaster in England,was the first to propose the use of stamps to cover postage. Make sure you read and agree to the terms and conditions of use first. use the first-person point of view to write about something that happened to you. 请问use of the hail the use of the use of sth... the first of the A car traveled frow Ato B in 30 minutes.The first half of the trip was covered at 50 mph cold theA car traveled form A to B in 30minutes .The first half of the trip was covered at 50 mph,cold the second half at 60 mph .What was the averagespeed? use your outline to write your paragraph.remember to indent(leave space) at the beginning of the first line. Write the first letter of each picture and use the letters to make to make a new word. 英语任务型阅读The Chinese were the first nation of people to use surname.求全文及答案 Their use was limited by laws,the first of which dates back to the fourteenth century急 the first day of one of the first... on the first of