题目内容
Mr．Wang made up his mind to devote all he could ________ this activity．
organize
to organize
organizing
to organizing
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
Mr. Wang made up his mind to devote all he could______ his oral English before going abroad .
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