34. More than 1,600 firefighters are currently working to ________ containment lines as a means to slow the spread of massive bushfires across Australia.
(A) rip off
(B) shore up
(C) take down
(D) sweep away
答案:登入後查看
統計: A(97), B(153), C(98), D(102), E(0) #2673796
統計: A(97), B(153), C(98), D(102), E(0) #2673796