---Who do you think should ____ the responsibility for white pollution? --- Both the producer and the consumer.
My brother has been admitted into a key university, __________,Ithink, he has been dreaming of for years.
— Remember the first time we met?—Of course I do. You __________to the music on the stage.
It is not __________ for me to borrow all the books from the librarynow because I can only borrow one each time.
It was not until I went through his paper that __________ what rapidprogress he had made in writing.
We did have a quarrel about money last night, but now we havealready __________.