高等继续教育 / 英语语法
正确率：100%
网络远程教育期末考试【英语语法】模拟试题
Jenny was very sad over the loss of the photos she had shot at Canada, ＿＿＿＿ this was a memory she especially treasured.
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Jenny was very sad over the loss of the photos she had shot at Canada, ＿＿＿＿ this was a memory she especially treasured.
考题选项：
as
if
when
where
参考答案：