Mr. Wang made up his mind to devote all
题型:选择题
问题:
Mr. Wang made up his mind to devote all he could _____ his oral English before going abroad. |
A. improve B. to improve C. improving D. to improving |
Mr. Wang made up his mind to devote all he could _____ his oral English before going abroad. |
A. improve B. to improve C. improving D. to improving |