The first textbook written for teaching English as a foreign language ________ in the 16th century.

A．came about B．came across

C．came out D．came over

 The first textbook written for teaching English as a foreign language      in the 16^th century.

    A. came about     B. came across    C.came out     D. came over

The first textbook _______ for teaching English as a foreign language came out in the 16th century.

A. having written      B. to be written    C. being written     D. written

 The first textbook ____ for teaching English as a foreign language came out in the 16th century.

A.have written                    B. being written           C. to be written           D. written