问题补充：
单选题Whenthefirebrokeout,Marydidn know___.A.what to doB.what doC.to do whatD.what thing to do
答案：
A解析Mary didn know what to do意为: Mary不知道该做些什么? what to do作know的宾语.
时间：2023-07-30 11:28:38
单选题Whenthefirebrokeout,Marydidn know___.A.what to doB.what doC.to do whatD.what thing to do
A解析Mary didn know what to do意为: Mary不知道该做些什么? what to do作know的宾语.
2022-11-27
It was almost midnight when the fire in the neighborhood.A. broke upB. broke downC. broke
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