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。
I’vegottheorderfromthebossthatthework_______finishedbefore5p.m.today.
_______thefirstlanguageisusedintheteachingofthesecondlanguageintheGrammar-TranslationMethod.
翻译：Sineethepremiumvarieswiththescopeofinsuranee,extrapremiumisforbuyer'saeeount,shouldadditionalrisksbecovered.
AccordingtotheGrammar-TranslationMethod,Latingrammarwasconsideredtobethe______grammar.
Asitinvolvesonlyasmall___,wehopeyouwillhavenodifficultyonpromotion.()
