21.   Jia had been a painter, but his vision became impaired.

n. + become >>共 1789
people 1.19%
company 1.07%
issue 0.77%
bill 0.69%
game 0.65%
situation 0.62%
woman 0.61%
life 0.60%
country 0.58%
child 0.56%
vision 0.06%
vision + v. >>共 210
be 40.15%
come 2.69%
become 2.69%
improve 2.17%
seem 2.17%
include 1.79%
have 1.41%
remain 1.15%
blur 1.15%
go 1.15%
每页显示:    共 21