Question

I recognized her as soon as I met her at the airport though

Answer 1

C

句意：在机场我一看到她就认出了她，虽然我们好多年没见面了并且她改变了许多。a great deal 在这里为副词，许多，非常之意。a great many修饰可数名词复数，a great deal of 修饰不可数名词。所以选C。