Only when _____ the painting _____ decide whether the painting is worth buying.
A. he sees, he can B. does he see, can he
C. he sees, can he D. sees he, he can
Only when _____ the painting _____ decide whether the painting is worth buying.
A. he sees, he can B. does he see, can he
C. he sees, can he D. sees he, he can
C
only引导的状语在句首，主句要部分倒装。