If you want to know how a word is used, ______ the word up in the dictionary.
A. refer
B. look
C. seek
D. see
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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
I cannot find my umbrella. I must have ______ it on the bus.
A. lost
B. forgotten
C. mislaid
D. left