it was ___that both my son and my daughter could`t put it do
it was ___that both my son and my daughter could`t put it down a such interesting a book b so interesting a book c a such interesting book d so an interesting book 这题选b,不过我好像看到a也可以吧,谁能具体告诉我a的such 为什么不行呢
B A 要改成such an interesting book C 要改成such an interesting book D 要改成so interesting a book such和so 都有如此,这样的意思.但是so修饰形容词,即:so + 形容词+ a/an + 名词 such修饰名词,即:such +(a/an)+形容词+名词.