He promised me if we_______ the game, he ________us a round of drink.
Scientists study ________ human brains work to make computers. (2012·四川,17)
It suddenly occurred to him________he had left his keys in the office. (2012·江西,25)
Jerry did not regret giving the comment but felt ________ he could have expressed it differently. (2012·北京,24)
As many as five courses are provided,and you are free to choose ________ suits you best. (2012·陕西,20)
It doesn’t matter________you turn right or left at the crossing—both roads lead to the park. (2012·天津,9)