—Meimeiis

問題詳情：

—Meimei is _____the difficult math problem. — I’m sure she’ll _____.

                  A. working on; work it on               B. working out; work it out

                  C. working out; work it on            D. working on; work it out

【回答】

D

知識點：動詞和動詞短語

題型：選擇題