The first textbooks ______ for teaching English as a foreign language came out in the 16th             century. 
#95342
A
to be written
B
written
C
being written
D
having written
推荐题目
 I would rather ___ than play now.
#97481
A
to study
B
am studying
C
study
D
studied
Robert is said________ abroad, but I don’t know what country he studied in.
#91282
A
to have studied
B
to study
C
to be studying
D
to be studied
To our surprise, the painting considered______ should have won the prize.
#98881
A
being copied
B
having been copied
C
to have copied
D
to have been copied