You know, ________ knowledge of ________computer is necessary to a secretary(秘书).
_______the exam, the boy was punished by his father.
________hard before, Tom is afraid of failing in the exam.
The brave man died,________ his young wife nothing but a________ cottage.
-Oh, it's already a quarter past six. What shall we do at the meeting this evening? -We'll go on with the matter________ this afternoon.
The old farmer,________ the badly-injured and wounded soldier, came out of the burning house, ________for help.