61._________A. stageB. processC. periodD. applica

The word "interim" most probably means ______ .A．intervalB．hard timeC．transitional periodD

Not for a（n) __________ did I believed he had lied.A. timeB. ageC. periodD. instant

The actual______by which coal is extracted is well worth seeing.A．conductB．processC．proced

61._________A. processesB. producesC. possessesD.

61._________A. enjoyedB. experiencedC. performedD

61._________A.. modificationB. detectionC. assess