They ________ extensive and possibly dangerous actual flight training.
A、undertakeB
句意：他们经历了大量的并且可能是危险的实际飞行训练。
Itisbelievedthatgrammaranalysisandtranslationbegantobethebasicproceduresinforeignlanguageteachingfrom_______.
翻译：Pleaseadviseuswhetheryouironnailpackedinplywoodkegsof60kgs,netandwhetheryoucanshipourorderfromstock.
翻译：Wewouldliketoinformyouthatatpresentwecansupplyyouwithvariouskindsofmen'sleathershoes.
Thisofferisfirm,subjecttoyourimmediatereply____shouldreachusnotlaterthantheendofthismonth.()
I’vegottheorderfromthebossthatthework_______finishedbefore5p.m.today.
