The knife and fork ____ different uses at meals, and every westerner has ____ knife and fork.
I won’t give you any help __________ you tell me the truth. It’s none of my business.
Many of my students, __________ Zhang Hua and Li Yong, are working very hard, and we should learn from them.
Of these two teams above, the former comes from the US; the _________ comes from England.
Readers can _________ very well without knowing the exact meaning of each word.
I found _________ hard to make myself understood by the old man.