单选题 The side effects of the treatment have been a cause ___（）__ concern for a while now

单选题 The timely business trip helped him get _（）__ the dilemma whether to attend the birthday celebration of a senior he disliked.

单选题 The legendary diamond Blue Belle of Asia will be put _（）__ auction again this November.

单选题 The teacher said the girl's success lies _（）__ her keen appetite __（）_ knowledge rather than her aptitude.

单选题 Firms have to adopt "inflation accounting" techniques in which all costs, revenues, profits and losses are fully adjusted __（）_ inflation.

单选题 Many people doubt Donald Trump's being elected American president can usher _（）__ new era for American politics.

单选题 A visionary leader with penetrating insight together with a group of followers with team spirit make _（）__ efficient and successful team.

单选题 With so many means available to beautify a person now, a homely face can be transformed __（）_ a radiant star face.

单选题 I hope I can do something for you _（）__ return _（）__ your hospitality and help extended to me during my visit here.