As is often the case, little Tom, if ____________, is most likely to stop crying soon.
A:left ignoring
B:left ignored
C:leaving ignoring
D:leaving ignored
wú xiá
luò tuo
pān dēng
qīng luó
____
píng zhàng
fēng luán
lián mián
yáo wàng
分解因式:2a2﹣6a=____ .