44. [A] bulk [B] host [C] gross [D] magnitude

　　45. [A] On [B] With [C] For [D] By

　　46. [A] broadly [B] thoroughly [C] generally [D] completely

　　47. [A] however [B] meanwhile [C] therefore [D] moreover

　　48. [A] at [B] in [C] about [D] for

　　49. [A] manifested [B] approved [C] shown [D] speculated

　　50. [A] noted [B] impressed [C] labeled [D] marked

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