Had I known about this computer program, a huge amount of time and energy ________.
No progress was made in the trade talk as neither side would accept the conditions of ________.
The manager believes prices will not rise by more than ________ four percent.
Neither side is prepared to talk to ________ unless we can smooth things over between them.(2010·全国Ⅱ)
—Which of the three optional courses did you like best,Joe?—To tell you the truth,I didn't like ________ of them.
It was hard for him to learn English in a family, in which ________ of the parents spoke the language.