Pastryisafoodmadefromflour,fat,andwaterthatismixedtogether,rolledflat,andbakedintheoven.
is mixed 为什么?that的先行项是什么?
这个定语从句结构有问题。that的先行词无疑是 flour,fat,andwater,但定语从句并列谓语不当。由于be mixed together的主语应该是复数,即flour,fat and water。但后面的谓语be rolled flat and baked的主语显然不再是flour,fat and water,而是dough了。所以这个定语从句逻辑错误,致使语法错误
修改如下:
Pastryisafoodmadefromflour,fat,andwaterthataremixedtogether to form a dough which is rolled flat andbakedintheoven.