They ________ extensive and possibly dangerous actual flight training.
A、undertakeB
句意：他們經(jīng)歷了大量的并且可能是危險的實際飛行訓練。
______hehasenoughmoneytobuythehouse,itdoesn’tmeanhe’sgoingtodoso
Don’ttrusteverything________youhavereadinthenewspapers.
Somelinguiststhoughtthatalllanguages______andwereruledbyacommongrammar.
Asitinvolvesonlyasmall___,wehopeyouwillhavenodifficultyonpromotion.()
ltisoursincerehopethatyouwilldirectyourefforts__thepromotionofthisnewproductinyourmarket__ourmutualbenefit.
