A.whose stories are one of the best 25 chosen.
B.who return the towel to the hotel.
C.who didn't take the towel from the hotel.
D.who feel guilty of towel taking.

A.fine weather
B.signal towers
C.the spelling system
D.arm movements
A.Neither the Greek soldiers nor their enemy could understand the messages.
B.African soldiers shouted from tower to tower to pass messages.
C.Using flags to send messages was found by a French engineer.
D.Only by using telephone could people send speech sounds quickly.
A.In a special way.
B.Over a very short distance.
C.By a musical instrument.
D.At a rather slow speed.