_____ your timely advice,I would never have known how to go about the work.
B
暂无解析
AlthoughSPanish，heattendedthecourse.
Toobtainasatisfactoryresult，onemustapplytwo____ofpaintonacleansurface.
Evenifhisletter（）tomorrow，it（）toolatetodoanything.
.If you have really been studying English for so long, it’s about time you _____ able to write letters in English.
Itisnotuncommonforthere_____problemsofcommunicationbetweentheoldandtheyoung.