He wrote a letter he explains what had happened in the accident． [ ] A．what B．wh
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He wrote a letter ________ he explains what had happened in the accident．
[]A．what
B．which
C．where
D．how
试题答案
答案：C
He wrote a letter ________ he explains what had happened in the accident．
[]A．what
B．which
C．where
D．how
答案：C