单选题 Jack would rather spend time complaining than ______ the problem by himself.

单选题 They will not start the project until the board chairman ______ back from South Africa.

单选题 I don’t regret ______ her what I thought about her proposal, even if it upset her.

单选题 My brother brought me a few reference books, but ______ of them was of any use for my report.

单选题 ______ that I wasn’t going to get much chance for promotion, I soon became bored with my work.

单选题 Most of the retired people are happy ______ their quiet life in the countryside.

单选题 I tried to get out of the business ______ I found impossible to carry on.

单选题 News came from the sales manager ______ the new product had been selling well in the local market for three months.

单选题 Please note that I will be away from Boston next week, ______ you want to call me and discuss things.