Jack,( )is ourEnglish teacher ,Mrs.Black.

題目：

Jack,( )is ourEnglish teacher ,Mrs.Black.
A.he is.B.THis is C.That is D.it is

解答：

B,this is
顯然jack 是男名, Mrs. 是女士
所以這裡是向Jack介紹Mrs. Black.
其他的都試圖說Jack 是 Mrs. Black.