Question

【题目】There is no doubt the boxes were then put on a train for Konigsberg, which was at that time a German city on the Baltic Sea.

Answer 1

【答案】that
【解析】句意：毫无疑问这些箱子那时被放在去格尼斯堡的火车上，那使是波罗的海沿岸的一个德国小镇。There is no doubt that...固定句型，“毫无疑问”，可知答案为that。