题型:填空题 There is much ______ can be done about the accidents ______ from carelessness.[ ]A. which, arose B. that, arisingC. which, arisen D. that, arise 查看答案
题型:填空题 The airline stewardess (空姐) said to passengers on ______ with a beautiful smile, “welcome _________!”A.aboard; board B.board; aboardC.board; board D.aboard; aboard 查看答案