He has collected stamps since ten years age 对since ten years age 提问用什么?

he has collected 4( boxes of / boxes) stamps选哪个? he has collected 1000 cool stamps in his 加年龄 He has collected stamps since ten years age 对since ten years age 提问用什么? 翻译：the boy is sorting out the foreign stamps he has collected为什么sort加ing The boy _____ the foreign stamps he had collected.A.is sorting B.has been sorted he has collected a great many stamps 中的 collected是不及物动词么?a great many 这类词 应该算是介词短词吧 she enjoys_____stamps.and now he has 226 of them.a.to collect b.collected c.collects d.collecting He has collected many kinds of them in his bedroom ,such as bears,penguins and so on. 两条单项选择~1.Neither I nor he _____.A.can swims well B.are swimming well C.swims well D.have swum well2.No rubbish ____ for three weeks.A.collected B.is collected C.has collected D.has been collected Bob has a great collection of shells. He has been ___shells___ three years. A.collected,since B.collecting,about C.collect,during D.collecting,for It is said that money___at present for the Hope Project.A.is collected B.has collected C.is being collected D.has been collected请大虾解释下. He collected shells two weeks ago.同意句It____two weeks ____he collected shells. 1、He （ ） more than 200 model cars in the last five years 为什么填的答案是has collected?为什么填的答案是has collected?完成时不是用since 或 2、（ ）you （ ）from your parents recently?为什么答案是Have：heard 为 请说明理由 1.______ the end of last week.Jenny had already collected 1,000,000 stamps.A.At B.In C.By D.Orr2.He ______ Shanghai for two days.A.has left B.has gone to C.has returned for D.has been away from3.We _____ to come to school yesterday mo Hardly ___________ the papers on his desk when the door burst open.A.he collected B.he had collected C.did he collect D.had he collected选出答案并请说明原因,那为什么要用过去完成时呢？ volvo sta come sta come sta