Question

　

Do be quiet, Sally. And don't keep ________ ________ silly questions.

[　　]

A．on asking; such

B．asking; so

C．to ask; such

D．to ask; so

Answer 1

答案：
解析：

题意：安静些，Sally,不要老是问这些愚蠢的问题。第一空可用keep doing或keep on doing,表示反复做某事。第二空修饰可数名词的复数，应用such, so只能用于“so＋adj. ＋a/an＋n.”这一结构。