1.   Although training has improved in recent years, checkpoint employees often leave for better-paying, less-stressful jobs.

2.   As a result, they were unable to say whether training has improved or declined in Texas or how the state rates nationwide.

3.   Pay should be raised and training improved.

4.   Some of those pilots, including James Mattaliano, one of those who died, warned that an accident was inevitable unless training improved.

5.   Training improved, just as it has now.

v. + improve >>共 116
be 3.61%
sample 3.61%
train 3.01%
add 2.41%
help 2.41%
have 2.41%
play 2.41%
house 1.81%
manufacture 1.81%
restructure 1.81%
train + v. >>共 88
be 42.67%
begin 8.79%
camp 2.28%
go 1.63%
improve 1.63%
have 1.63%
include 1.63%
help 1.63%
open 1.63%
take 1.63%
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