21.   The teachers cited peer influence, poor parental supervision and unfavourable home backgrounds as common causes for misbehaviour in schools, the newsletter said.

a. + supervision >>共 211
international 9.64%
medical 6.66%
close 6.06%
strict 5.12%
adult 4.61%
parental 3.50%
direct 3.16%
federal 2.99%
state 2.30%
proper 2.13%
poor 1.79%
poor + n. >>共 917
people 5.56%
country 4.79%
performance 3.63%
health 3.05%
family 2.95%
condition 2.69%
child 2.06%
neighborhood 1.95%
nation 1.73%
weather 1.60%
supervision 0.11%
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