While being questioned on the court, the man denied the old lady’s necklace.

A. go

B. went

C. is going

D. will go

A. sent

B. to be sent

C. sending

D. being sent

　　1.What is the main purpose of this passage?

　　A. To look back to the early days of computers.

　　B. To explain what technical problems may occur with computers.

　　C. To discourage unnecessary investment in computers.

　　D. To warn against a mentally lazy attitude towards computers.

　　2.According to the passage, initial concerns about computers were that they might_____

　　A. lead us into the post-war era

　　B. be quite widespread

　　C. take control

　　D. take over routine tasks

　　3.The passage recommends those dealing with computers to_____

　　A. be reasonably skeptical abort them

　　B. check all their answers

　　C. substitute them for basic thinking

　　D. use them for business purposes only

　　4.An "internal computer" is_____

　　A. a computer uses exclusively by one company for its own problems

　　B. a person's store of knowledge and the ability to process it

　　C. the most up-to-date in-house computer a company can buy

　　D. a computer from the post-war era which is very reliable

　　5.The passage suggests that the present-day problem with regard to computers is_____

　　A. challenging

　　B. psychological

　　C. dramatic

　　D. malfunctioning