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He must be helping the old man to water the flowers, ? A. is he B. isn’t he C. must he D. mustn’t he [答案]B [解析]考查反意疑問句.陳述句中的謂語中雖有情態(tài)動詞must.但此處must表示對正在進行的動作進行推測.將其不看作情態(tài)動詞.而must后有助動詞be.故反意疑問句根據(jù)助動詞be來構成.選B. 【查看更多】

 

題目列表(包括答案和解析)

He must be helping the old man to water the flowers,______ ?      

A. is he    B. isn’t he     C. must he     D. mustn’t he

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He must be helping the old man to water the flowers,______ ?      

A. is he     B. isn’t he     C. must he     D. mustn’t he

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 He must be helping the old man to water the flowers,     ?       A. is he     B. isn’t he     C. must he     D. mustn’t he

 

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He must be helping the old man to water the flowers,______ ?      
A. is he     B. isn’t he     C. must he     D. mustn’t he

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He must be helping the old man to water the flowers, ________?
[     ]
A. is he  
B. isn't he
C. must he  
D. mustn't he

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