Butthemostimportantthingaboutthisnewtypeofpineapplewasthatitwastwiceasswiceassweetasthehit-and-misspineappieswehadknow本句中的That可以用What替换么为什么,请给予指导

Question

But the most important thing about this new type of pineapple was that it was twice as swice as sweet as the hit-and-miss pineappies we had know 本句中的 That 可以用What 替换么 为什么,请给予指导

Answer 1

不能了
表语从句,表示陈述语气只能用that
what 如果引导表语从句是有意义的,表示"什么"