单选题 ______ I return these books to the library today， I’ll have to pay a free.

单选题 Surgeons have successfully ______ a heart into a five-year-old boy.【仅支持A-H选项，选项超出支持范围】

单选题 Although this job does not offer a good salary, it offers great career ______.【仅支持A-H选项，选项超出支持范围】

单选题 This career path is difficult but holds great ______ potential for me.【仅支持A-H选项，选项超出支持范围】【试题选项缺失，请补充】

单选题 A computer can ______ many tasks such as searching information and word processing.【仅支持A-H选项，选项超出支持范围】【试题选项缺失，请补充】

单选题 A person with higher ______ can get a better paid job at the beginning of their career.【仅支持A-H选项，选项超出支持范围】

单选题 He is thinking about changing ______ and becoming a police officer.【仅支持A-H选项，选项超出支持范围】

单选题 “She’s a lot older than you, isn’t she?” “Fifteen years, to be ______.”【仅支持A-H选项，选项超出支持范围】

单选题 The boy has set himself the ______ goal of being a rocket scientist when he grows up.【仅支持A-H选项，选项超出支持范围】