The boys with this frightening person lost their tongues.A. to faceB. having facedC. face

问题补充：

The boys,with this frightening person, lost their tongues.

A. to face

B. having faced

C. faced

D. facing

答案：

A. to face

B. having faced

(答案→)C. faced

D. facing

解析：考查非谓语动词。be face with面对，在句中作状语，选C。