There's no way of knowing why one man makes an important discovery ________ another man, also intelligent, fails.
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.
------ Where is my dictionary ? I remember I put it here yesterday . -------- You ______ it in the wrong place .
When a pencil is partly in a glass of water , it looks as if it__________ . A. breaks B, has broken C. were broken D. had broken
He has the ________ of rich experience ______other workers .