問題詳情

4. Bill doesn’t know _____ .     
(A) why should he do it 
(B) what’s Mary looking at 
(C) how can save money 
(D) who fed the cat

參考答案

答案:[無官方正解]
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)