THE 20TH CENTURY HAS BOUGHT MANY DANGERS TO WHALES DUE TO ________...

17. - BAI TAP DAP AN UNIT 9 HAY
BAI TAP DAP AN UNIT 9 HAY

17. the 20

th

century has bought many dangers to whales due to ____________

a. improve methods of technology b. fast ship c. longer nets d. both a- b