Question

Only after__________ his work __________ to see his grandfather.

A．finishing; did he go	B．he finishes; did he go
C．he finished; he went	D．having finished; he went

Answer 1

A

考查倒装。only位于句首时，应该用部分倒装，after后加doing或从句；故第一空填finishing或he finished，排除B、D；第二空用部分倒装，把did提前。故选A。