单选题
After her time in hospital, Jenny's parents are afraid she has ______ in her lessons.
A、
fallen behind
B、
fallen down
C、
fallen back
D、
fallen off
【正确答案】
A
【答案解析】
[考点] 词义辨析
[解析] fall behind“落后”；fall down“掉下”；fall off“脱落”。
提交答案
关闭