(2014届陕西省西工大附中高三第五次适应性训练英语试卷) It was hard for him to learn English in a family, in which_____ of the parents spoke the language.
--What on earth are the police busy with? ---They have been looking into how the plane crash _______.
Each country, of course, in _______ Copenhagen has its own particular priorities and concerns, which is why ________ agreement is so difficult to reach.
I’m sorry to tell you that we will not tell you the results of the survey until we have looked through all the _______.
The ground is wet all over, so I’m sure it must have rained last night, ________?
________ is know to us all is that the old worker, for _______ life was hard in the past, still works hard in his seventies.