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 His father will be back from London _____a few days.
  A. since   B. in   C. on   D. after

His father will be back from London ____ a few days.

A.since             B.in                              C.on                             D.after

His father will be back from London ____ a few days.

A.since             B.in                              C.on                             D.after

His father will be back from London ____ a few days.

A.since             B.in                              C.on                             D.after

His father will be back from London ____ a few days.

A.since             B.in                              C.on                             D.after