Don’t get the plastic tube close to the fire; it easily.
A. burned
B. is burned
C. burns
D. is burning
网友回答
A. burned
B. is burned
(答案→)C. burns
D. is burning
解析：考查时态和被动语态。句意：不要把塑料管子放得离火太近，它很容易烧着。表示事物本身属性时，用主动形式表被动含义。如：writes well好写, washes easily好洗, sells well好卖。故选C。