4．Do you want to have lunch with us？
No，thank you．I_________ lunch．I ________  lunch at half past twelve．（　�。�
A．have had； hadB．had； have hadC．had； hadD．have； have had

分析 --你要跟我們一起吃午飯嗎？
--不用了，謝謝．我已經(jīng)吃過午飯了，我十二點半吃的（午飯）．

解答 答案：A
解析：根據(jù)答句的第二句"我已經(jīng)吃過了"可知此處該使用現(xiàn)在完成時（表示已經(jīng)吃過，言外之意就是不需要再吃了），故B、C、D謝謝均可排除；后面出現(xiàn)了準(zhǔn)確的時間點"十二點半"，故只能使用一般過去時（現(xiàn)在完成時不可與單獨的時間點連用）．綜上，只有A選項符合題意．

點評 本題考查時態(tài)，做此類題目時一定要根據(jù)句意或句中的其它提示確定句子該使用何種時態(tài)，再結(jié)合選項選出正確答案．

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