题目内容
完成句子
1: 将要发行一套新邮票来纪念这个事件。
A new set of stamps _____ in memory of the event.
2: 我们为他的安全担心。
We are _____ his safety.
A new set of stamps _____ in memory of the event.
2: 我们为他的安全担心。
We are _____ his safety.
1: will be issued 2: concerned about/for
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