1 . You have to _________ (权衡) in your mind whether to pursue the matter or not. (根据汉语提示完成句子)

2 . To remain competitive, the company has to be able to ______ ______(适应) the changing marketplace. （根据汉语提示完成句子）

3 . The company is ______ ______ ______ (为……负责/受责备) the environmental pollution. （根据汉语提示完成句子）

4 . When another bean plant ________ (探测到) the chemicals from its injured neighbour, it starts to ________ (释放) its own, different chemicals.（根据汉语提示填空）

5 . The famous football star, David beckham, would love his three boys to ___________ ___________ ___________ ___________ (继承他的事业). (根据汉语提示完成句子)

6 . The president promised to _____ _______ _______ (阐明) his new financial policies in the near future. (根据汉语提示完成句子)

7 . To be frank, I hadn’t intended to___________________(让她失望) but I failed again. (根据汉语提示完成句子)

9 . To ________ ________ (总结), for a healthy heart you must take regular exercise. (根据汉语提示完成句子)

10 . The thought of leaving once flashed through his mind, but he quickly ________(放弃) the idea and he found ways ________(去应对挑战). (根据汉语提示完成句子)