If you want to know how a word is used, ______ the word up in the dictionary.
A. refer
B. look
C. seek
D. see
I"m afraid your son has been ______ in an accident.
A. fallen
B. involved
C. succeeded
D. dropped
The great amount of rain this autumn had ______ the harvest of cotton.
A. impressed
B. effected
C. dismissed
D. affected
Because they usually receive the same score on examinations, there is disagreement as to ______ is the better student.
A. who
B. which
C. whom
D. whose