阅读短文，根据短文内容，回答下列问题．（本题共5小题，每小题2分，共10分）

I am Peter Hodes，a volunteer stem cell courier（运送员）．Since March 2012，I've done 89 trips﹣of those，51 have been abroad．I have42hours to carry stem cells（干细胞）in my little box because I've got two ice packs and that's how long they last．In all，from the time the stem cells are harvested from a donor（捐献者）to the time they can be implanted（移植）in the patient，we've got 72 hours at most．So I am always serious about time

I had one trip last year where I was caught by a storm in America．I picked up the stem cells in Providence，Rhode Island，and was supposed to fly to Washington then back to London．But when I arrived at thecheck﹣in desk at the airport in Providence，the lady at the desk said，"Well，I'm really sorry．I've got so bad news for you﹣there are no flights（航班）to Washington．"So I took my box and put it on the deskand said，"In this box are some stem cells that are urgently（急切地）needed for a patient．Please，please，you've got to get me back to the United Kingdom．"She just dropped everything．She managed to help me get on the flight to Newark and got me back to the UK even earlier．

For this courier job，you must know that in that box you've got something that is going to save somebody's life．

66．What does Peter Hodes do？ 　　

67．How long can the two ice packs last？ 　　

67．Why were there no flights to Washington？ 　　

69．Where did the donor donate（捐献）the stem cells？ 　　

70．Which flight did the lady put Peter on first？