Most of us think that the ocean bottom is ___ smooth land.
---Good evening. ______ ? ---Yes, that’s right. We’d like a table on the side.
______ different life today is from ______ it was fifty years ago.
The driver was at ______ loss when ______ word came that he was forbidden to drive for speeding.
My sister ,_____ my family are proud, was admitted to Tsinghua University last autumn.
He then drew out of a pile of papers with name and dates which could 20 years ago.