可以。
It is a pity that he should miss such a golden opportunity. 他竟失去这样一个好机会,真可惜。
若说话者认为 that 从句所叙述的事为事实,就用陈述语气,常用于口语中。如:
It is a pity that the accuracy insisted on is not greater. 很可惜,所强调的精确性并没有比较大。
(摘自《刘毅英语语法宝典》p.375)