__________ did the silk dress ________ you ? —150 yuan.[ ]

In his lecture, the professor referred to the belief, in contrast to all other countries, ______the elderly are wise, ______is particularly dominant in the Chinese culture．

He never ______learning English. That was why he was successful at last.

____ troubles me most right now is____ I can’t remember where I have put my car keys.

There isn’t ______ orange juice. What about ______ milk ?