一道英语语法题,求助,谢谢.In 1987 a Soviet icebreaking ship helped free three gray whales that had become trapped in the Arctic ice after they had swum into the coastal waters of Alaska to feed. 此句正确.1.这句话中用了两个过去

求助数学一道题!谢谢 求助一道初三英语语法题____is your math teacher That one in red.为什么是填Which Who 初二语文,谢谢,求助一道题 求助几道英语语法题!> 一道英语语法题,求助,谢谢.In 1987 a Soviet icebreaking ship helped free three gray whales that had become trapped in the Arctic ice after they had swum into the coastal waters of Alaska to feed. 此句正确.1.这句话中用了两个过去 英语语法!求助! 一道英语语法题求助In the 1960s,Cesar Chavez organized migrant farmworkers,many of ( ) Mexican Americans,into a labour union that support nationwide botcotts of both lettuce and grapes.请问括号里应该是whom 还是 them? 一道逻辑题求助 求助一道几何题? 求助一道线性代数题 求助,救命一道题 第五题,求助谢谢 谁会初二英语语法,求助. 一道英语语法题There are many people in here这句话有什么语病吗? 求助一道英语阅读题. 一道线性代数证明题求助 一道图形推理题求助. 求助一道线性代数的题