--- How _______ is it from Xi'an to Dunhuang? --- It's less than 3 _______ flight.
A.long; hour's | B.far; hour's |
C.long; hours' | D.far, hours' |
--- How _______ is it from Xi'an to Dunhuang? --- It's less than 3 _______ flight.
A.long; hour's | B.far; hour's |
C.long; hours' | D.far, hours' |