47. Part of the world’s largest ice shelf is melting 10 times faster than the rest, ________ light o
48. Certain aspects of the linguistic form of proverbial sayings mark them as distinctive from other
49. Some species of bacteria and fungi ________ simple compounds such as alcohol.(A) make up(B) floa
50. Some type of instrument ________ has been known to painters since the early Stone Age.(A) for ap
Coronaviruses were discovered in the 1960s. They are a group of 56 that cause diseases in __57__ and