Before going abroad he devoted all he could his oral English.A. improveB. to improveC. im

发布时间：2020-08-16 12:03:19


Before going abroad he devoted all he could      his oral English.
A. improve
B. to improve
C. improving
D. to improving

网友回答

A. improve
B. to improve
C. improving
(答案→)D. to improving
解析：本题考查非谓语动词。句中考查短语devote … to …专心于。句意：出国之前，他尽他所能专心于他的口语。
以上问题属网友观点，不代表本站立场，仅供参考！