45 ___
A. They were protected by a strong United States Navy.
B. They were supported by a well-developed railroad system.
C. Most crew members had experience on foreign ships.
D. As part(?) owners of the ships, captains got some of the profits.
46 ___
A. They carried passengers, but not cargo
B. They were large, but surprisingly fast.
C. They were the first successful steam-powered ships
D. They were more reliable than other ships of the 1860’s.
47 ___
A. It’s now taught with the aid of computers
B. It isn’t considered as important today as it was in the past.
Children today learn it earlier than children did in the past.
D. A lot of time is spent teaching it.
48 ___
A. To indicate the emphasis teachers once placed on penmanship
B. To criticize a technique used to motivate children.
C. To illustrate the benefits of competition.
D. To suggest that teachers be recognized for their efforts.
49 ___
A. How educators create a curriculum
B. Why some parents object to the teaching of penmanship
C. The standards for penmanship in state curricula
D. The effects of rewarding good penmanship.
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