39.
(A) employing
(B) employed
(C) employ
(D) to employ

整篇文章介紹3種文本

A alphabetic text 文字文本

B logic of image (text) 圖像文本

C multimodal text 複合文本 (即A+B)

Alphabetic text is rapidly becoming less dominant under the increasing influence of both the still and the moving image and the multimodal texts, _39_ pictures, sound, movement, color, texture, are becoming the norm.

both B and C

句子拆解

1. Alphabetic text is rapidly becoming less dominant.

2. Under the increasing influence of both the still and the moving image and the multimodal texts, employing pictures, sound, movement, color, texture, are becoming the norm.

(1)主要子句

(2)分詞構句 employing 

both B and C employ picture, sound, movement, color, and texture.

省略主詞，主動employ 改成現在分詞。