—I wonder whether Helen will be here by five. —Her mother said she left home at half past four.

—I wonder whether Helen will be here by five.
—Her mother said she left home at half past four. She ________ be here at ten past five.
A. dare B. should C. shall D. need
【答案】B
【解析】
【详解】考查情态动词辨析。句意：——我不知道海伦五点以前会不会到这儿。——她妈妈说她四点半离开家。她应该在5点10分到这里。A. dare敢；敢于；B. should应该；C. shall可以；将；D. need需要。根据前文“Her mother said she left home at half past four.”可知，她妈妈说她四点半离开家，因此说话人推测出“她按道理/应该会在五点10分到达”这种可能性。选项B“should”可表示可能性，常译为“按道理说或应该”含义。故选B项。