They________extensiveandpossiblydangerousactualflighttraining.
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。
IntheGrammar-TranslationMethod,understandingandmemorizationof_____________wereregardedasimportantmeansofdevelopingmentality.
Wecannot_____presententertainanyfreshordersforYoungerBrandMen'sShirts.()
_______foralongtime,mostofthecropsinthisareadiedfromlackingwater.
ltisoursincerehopethatyouwilldirectyourefforts__thepromotionofthisnewproductinyourmarket__ourmutualbenefit.
翻译：Wesendyouabrochureonthevariouskindsofbicyclenowavailableforexport
