IT TAKES HALF …………HOUR TO WALK FROM HERE TO THE STATION.A ISN’T IT...

30. - 30 BAI TRAC NGHIEM VOI KEYS FOR 9 P
30 BAI TRAC NGHIEM VOI KEYS FOR 9 P

30. It takes half …………hour to walk from here to the station.

A isn’t it B. doesn’t he

A. a B. an

C. hasn’t he D. has he