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carry out开展,贯彻,执行,履行,实现,完成
例句：Extensive tests have been carried out on the patient.
对患者进行了多次试验。
a series of一系列,一连串
例句：There have been a series of airplane crashes lately.
最近有一连串的飞机坠毁。
leave后宾语补足语
2.Eleven days of what seems to be a concerted and audacious new militant campaign have left Pakistanis wondering what violence they will wake up to next and what their government can really do about it.
wake up to(使)认识到
例句：She woke up to the problems of growing old.
她意识到了年老所面临的种种问题。
3.It was earlier reported a 6-year-old boy was on board, but police on the scene where the balloon touched down say there was no one inside.
touch down降落
例句：The plane touched down this morning.
飞机在今早降落。
4. In three weeks of protests, roads have been blocked and municipal buildings set alight.
set alight点燃,着火,使燃烧,开始燃烧
例句：A cigarette set the dry grass alight.
香烟把干草点着了。