聚乳酸防粘连凝胶:英语问题2

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My classmates suggest tharl(←试卷上印刷不清楚)____the work on time.

A.finish B.must finish C.should finish D.is to finish.

When jack raised his abvice,the boss shook____head to meam that he did not agree with it.
A.his B.the .C./ D.a