单项选择题A.the 3 - member crew would have to dieB.the 5 - member crew would have to dieC.the 5 - member crew would have to abort the missionD.the 3 - member crew would have to abort the mission
填空题改“suffered”为“suffering”
填空题在safest前加定冠词“the”
填空题tombs
单项选择题A.America’sB.Britain’sC.Russia’sD.Japan’s