—Where is your father? —He ______ flowers in the garden.A.watersB.must waterC.must be wate

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—Where is your father? —He ______ flowers in the garden.

A.waters

B.must water

C.must be watering

D.must have watered

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。