问题补充:
Our teacher told us in class .
A. listened carefully
B. to listen carefully
C. listened careful
D. to listen careful
答案:
A. listened carefully
(答案→)B. to listen carefully
C. listened careful
D. to listen careful
解析:句意:我们的老师告诉我们在课堂上要认真听讲。Tell告诉,后面接带to的不定式做宾语补足语。本句中listen是实意动词,后面用副词做状语,故选B。