I heard they went skiing in the mountains last winter.A.may not be B.won't be C.couldn't be D.mustn't be

...I heard they went skiing last winter ....It ------have been true because there was littlesnow there .A may be B won,t be C couldn,t I heard they went skiing in the mountains last winter.A.may not be B.won't be C.couldn't be D.mustn't be 一道英语情态动词的选择题----I heard they went skiing in the mountains last winter.----It( ) true because there was little snow there.我觉得应该是mustn’t be为什么答案是couldn’t be? 情态动词表猜测--I heard they went skating in the mountains last winter.--It ____ true because there was little snow there.A may not be B couldn't be C might mot be D can not be They were heard ____（sing）when I walked past.They were heard ____（sing）every morning. I haven't heard from him( )he went abroadA when D since 为什么选D `I haven't heard form my good friend ann since she went to Russia.怎么翻译? 求解答The policemen went into direction ______ they heard the whistle.The policemen went into direction ______ they heard the whistle.A.fast B presently C.quickly D.directly 状语从句改写为分词短语1.As the young man had nothing to do ,he went out to play.2.Yesterday my sister went to bed late because she had much homework to do.3.When they heard the good news,the boyds shouted happily.4.When I stayed in Hefei,I Since she went to a village in Tibet after graduation ,I have never seen her again,nor ( )from her.A.heard I B.did I hear C.I have heard D.have I heard 状语从句与分词短语作状语的转换1.As the young man had nothing to do ,he went out to play.2.Yesterday my sister went to bed late because she had much homework to do.3.When they heard the good news,the boyds shouted happily.4.When I staye I've heard other people say they like that.I like Mark Twin. I heard a noise and went downstairs.I found that everything is in order.后半句怎样翻比较好? 填入适当的单词完成句子 I went to( ).Ivisited Big Ben.They went to( ).They visited the White House Have you ever heard from your aunt since she went to HongKong?Yes I heve just got a letter from__ 英语翻译I heard the main gate through which they had entered close with a resounding thud. I _______that they were at the partyA found B remembered C forgot D heard they heard the noise of