單項選擇。
— ______ is he so sad? 
— Because his new watch is lost.

A.Why
B.How
C.What
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科目:初中英語 來源:同步題 題型:單選題

單項選擇。
— ______ is he so sad? 
— Because his new watch is lost.
[     ]
A.Why
B.How
C.What

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