Jack seems to be very sad today.的同义句

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It seems that Jack is sad/unhappy today.
sb seems to do sth.=It seems that .
======以下答案可供参考======
供参考答案1:
Jack is unhappy today.
供参考答案2:
Jack looks very sad today
供参考答案3:
It seems that Jack is very sad today.
Jack looks very sad today
.