题文
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 |
推荐试卷
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 |
试题篮
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