1. Opening with tributes to jazz-age divas like Bessie Smith and closing with Koko Taylor's electrified gravel-and-thunder songs，the program will trace the blue'vigorous matriarchal line over more than 50 years.

　　（A） the program will trace

　　（B） the program shall trace

　　（C） there will be a program tracing

　　（D） it is a program that traces

　　（E） it will be a program tracing

　　2. Spanning more than fifty years， Friedrich Muller began his career in an unpromising apprenticeship as a Sanskrit scholar and culminated in virtually every honor that European governments and learned societies could bestow.

　　（A） Muller began his career in an unpromising apprenticeship as

　　（B） Mullers career began in an unpromising apprenticeship as

　　（C） Mullers career began with the unpromising apprenticeship of being

　　（D） Muller had begun his career with the unpromising apprenticeship of being

　　（E） the career of Muller has begun with an unpromising apprenticeship of

　　3. By installing special electric pumps， farmers' houses could be heated by the warmth from cows' milk， according to one agricultural engineer.

　　（A） farmers' houses could be heated by the warmth from cows' milk， according to one agricultural engineer.

　　（B） the warmth from cows' milk could be used by farmers to heat their houses， according to one agricultural engineer

　　（C） one agricultural engineer reports that farmers could use the warmth from cows' milk to heat their houses

　　（D） farmers， according to one agricultural engineer， could use the warmth from cows' milk to heat their houses

　　（E） one agricultural engineer reports that farmers' houses could be heated by the warmth from cows' milk

　　4. Eaten in the Mediterranean countries，northern Europeans viewed the tomato with suspicion，for they assumed it had poisonous properties because of its relationship to deadly nightshade.

　　（A） northern Europeans viewed the tomato with suspicion，for they

　　（B） northern Europeans were suspicious to northern Europeans，and they

　　（C） the tomato was viewed with suspicion by northern Europeans，who

　　（D） the tomato was suspicious to northern Europeans，and it was

　　（E） the tomato was viewed with suspicion by northern Europeans，it being