he saw it ___when he was walking past A happening B happen

相关推荐

• 1.Was it at ten last night _____ you arrived home?A.that B.which C.when D.where2.The old man is ____ thankful that he almost comes to tears.A.such  B.so  C.very  D.as 3.I saw Mary _____ a green dress at the meeting.A.dressed B.put on   C.wearing   D.wear4.Could you tell us ____ from?A .where are you   B.where you are    C.where were you   D.where did you come
• when he saw it happening,he called the police.这里的为什么用happening?而不用happened呢?
• When he saw the damage_____to his car ,he was so angry that he called the policeA.did B.doneC.made D.led请说明原因
• 21.Peter insisted _____ he pay the bill.A.on that B.what C.that D.on which22.They urged _____ the library open during the vacation.A.when B.where C.why D.that23.We wish we could have learned _____ when we were at high school.A.what you did B.that you had doneC.that what you did D.what did you do24.1 will describe to you _____ I saw when there.A.what B.that C.which D./25.From _____ I should say he is a good worker.A.what 1 know of him B.that I do know
• Tom ____（happen）to meet his class teacher when he was walking in the street.
• He saw a note ____ on his desk when he came back.A.was left B.is left C.left D.leaving
• A man was walking along the street when he saw a woman moving a large box全文内容
• A young man was walking through a wood when he saw a ring lying on the ground.
• Hardly had he heard his name____________when he saw an old friend of his _____________behind him,saving his hand to him.A.call;sat B.called ; seating C.calling; sit D.called; seated.说明为什么选这个,为什么不选那个.感激不尽!
• The big red American car was much too wide for an English country road.When JackThe big red American car was much too wide for an English countryroad.When Jack saw it coming toward him,he stopped his own car at theside if the road to make room for it to past.The American car went slowly past,so close that he could see the driver’s face quite clearly."Where have I seen that face before " he thought,“Wait a minute!I remember now.It was in the newspaper!
• 数学建模的意义是什么?
• 数学建模中的优化模型的意义是什么呢?求高手教教!