What will happen to you,if you ___ in your school work?a、fall downb、fall apartc、fall offd、fall behind

问题描述:

What will happen to you,if you ___ in your school work?
a、fall down
b、fall apart
c、fall off
d、fall behind

d fall down 失败 fall apart 变成碎片 fall off 摔倒 fall behind 落后