How long has he the phone? –For half an hpur..A. on B. madeC. been onD. been in

问题补充：

How long has he the phone? –For half an hpur..

A. on

B. made

C. been on

D. been in

答案：

A. on

B. made

(答案→)C. been on

D. been in

解析：根据后文回答For half an hpur..可知how long，据此应该为延续性动词连用，故选C

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