They left the boat, ________ they had come to the island.

They left the boat, ________ they had come to the island.

A.which

B.that

C.with which

D.in which

答案及解析： D

解析：

导解：此句是非限定性定语从句，只能从C，D中选，而“坐船”应为“in the boat”．