问题

It was a time _____ the killer whales helped the whalers catch the baleen whales [ ]

A: when
B: that
C: then
D: which

正确答案是：

同类题型

ng ago, a person whom I know verywell was__________a robbery

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Tom, I’m watching a football match. What about you?—_________.

_________either the twins or John going with me when the play _________here

Could you ride a bike when you were 5 years old—_____