Question

She is often seen ______ the old woman.  

A．help

B．helping

C．to help

D．help to

Answer 1

C

試題分析：根據(jù)題干的結(jié)構(gòu)is seen可知，本句是被動(dòng)語(yǔ)態(tài)，而see sb. do的被動(dòng)語(yǔ)態(tài)是be seen to do。本句的意思是“她經(jīng)常被看到幫助那個(gè)老婦人�！彼�以本題選C。
點(diǎn)評(píng)：本題實(shí)際是考查see的被動(dòng)語(yǔ)態(tài)，注意see的主動(dòng)語(yǔ)態(tài)后面跟動(dòng)詞的原形，如果變?yōu)楸粍?dòng)語(yǔ)態(tài)，則要用be seen to do。像這樣的單詞還有hear、help等。