Before going abroad he devoted all he could _______ his oral English.
A. improve。mB. to improve
C. improvingD. to improving
Before going abroad he devoted all he could _______ his oral English.
A. improve。mB. to improve
C. improvingD. to improving
D
注意两点:一是 devote … to … 是固定搭配,意为“把……贡献给……”;二是其中的 to 是介词,不是不定式符号,后接动词时要用动名词。