The definitions in （ ）are all in full sentences and the definition itself throws light on the grammatical use of the word in question.

The definitions in （ ）are all in full sentences and the definition itself throws light on the grammatical use of the word in question.

A.Collins COBUILD English Language Dictionary (1987)

B.Longman Dictionary of Contemporary English, New Edition (1987)

C.Oxford Advanced Learner's Dictionary, 3rd Edition (1980)

D.Webster's New World Dictionary, 2nd College Edition (1980)

正确答案是A