19.The woman you saw at the park      be Jane.She is at work now.( 。
A.mustB.mightC.canD.can't

分析 你在公園看見的那個女人不可能是簡,她現(xiàn)在正在工作.

解答 正確答案:D.情態(tài)動詞must+動詞原形,表示對現(xiàn)在情況的肯定推測,can't+動詞原形則表示對現(xiàn)在情況的否定推測.根據(jù)題干She is at work now.可知簡正在工作,所以在公園看見的那個女人不可能是她,則此處是對現(xiàn)在情況的一種否定推測,故選擇D.a(chǎn)t work表示在工作.

點評 本題考查情態(tài)動詞表推測,基礎題,掌握must與can與推測的用法及區(qū)別,再根據(jù)題干作出選擇.

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