请问给为英语高手,in the 1940s in the 1940's有什么不同?又或是,那个是正确,那个是对的?

请问给为英语高手,in the 1940s in the 1940's有什么不同?又或是,那个是正确,那个是对的? with chalk in chalk用粉笔为什么是with而不是in,这个题this book is writing in pen而用with是 this book is with a pen没有弄明白,请问英语高手给我讲一下不懂，那为什么The one written in pencil?可以用in l always in the deepest despair ,meet the most beautifulsurprise有待英语高手给个全解! 请问英语“Not in the 请问：past week 是否等于in the last week?in the last week 则为本天之前算起的一周.如今天为2月13 周三,in the last week 应为2月6-13日.last week则为2月3-10日但past week可否译成：在本周之前?请教高手可否给 请问英语高手此句有无错误!In summary,I think the British are not entirely indifferent. 英语高手现在来!我是bbmush~谁能给我12条英语世界之最啊?列；chongqing is the biggest city in the china comuputers are the second most useful ______ in the world .A invention B inventions.请问,选哪一个?高手指教为盼.在此谢过! 一道英语选择题,请求各位高手帮忙!Much _______ the doctor's amazement,the patient survived.A.in B.to C.for D.with希望各位高手给详细解释一下,谢谢! in his fifties 和 in the fifties 的区别 求英语高手. 求英语高手帮忙.above,under,before,in front of,in the front of啥意思 请问英语高手ball rt! Hand in hand,we walk,till the end of the universe.英语高手回答 every advantage in the past is judged in the light of the final issue求英语高手们翻译一下. 关于英语,请高手助我一臂之力~请问 in addition 和 what's more 请问英语高手in reply to和reply to的区别举例说明 But as soon as the old people need anything in the way of care and attention,the situation becomes very difficult___请问各位英语高手括号内填哪个单词才好呢,怎么翻译,indeed /independent / worth/ definitely 求英语高手给填几道填空题Fill in the blanks with the proper words and expressions given below,changing the form if necessary.　essential damage to refer to ...as ...release consequencederive phenomenon suffer from convert supply with1.We_