問題詳情

28.( ) The most important thing is ______ you have to turn off the gas before leaving the kitchen.
(A)this
(B)that
(C)it
(D)there

參考答案

答案:B
難度:非常簡單1
書單:沒有書單,新增

用户評論

Larry Tsai】評論

that後面加名詞子句