問題詳情

20. Mom asked us _____ quiet because Dad was sleeping. We had to _____ quietly.
(A) keep, talking　
(B) keep, talk　
(C) to keep, talk　
(D) to keep, talking

參考答案

答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)