A.tighteningB.intensifyingC.focusingD.fastening
A. tightening
B. intensifying
C. focusing
D. fastening
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A.ReleaseB.PublicationC.PrintingD.Exposure
A. Release
B. Publication
C. Printing
D. Exposure
【C20】
A. could
B. might
C. should
D. must
【C19】
A. waiting
B. guessing
C. believing
D. hoping
【C16】
A. line
B. path
C. direction
D. place