st is as______ to learning as the ability tounderstand, even more so.

下列句子中，没有语病的一项是（ ）

Why ______ we eat outside ______ we have so much delicious food at home?

He expressed his hope ____ he would visit Chinaagain thenext year, and this was The very hope____he expressed as soon as he arrived in the country.

Why do you want the book so much? — ____, sir.