ACCORDING TO THE AUTHOR , THE IMPRACTICALITY OF USING COAL , OIL SH...

5. According to the author , the impracticality of using coal , oil shale and coal tars as sources of

energy is due to...

A. their being time consuming

B. their being money consuming

C. the scarcity of sources

D. the lack of technology

Question 9: Choose the best answer (A,B,C or D) to fill in each blank:

It was a Monday morning in the office and , as usual , everyone was busy sorting through their mail

before starting work . The other staff had (1) ...that Nicky , one of the computer operators , has

been (2) ... rather miserable recently and they wondered what might have happened to make

her so ( 3 )... Suddenly Nicky accidentally (4)... over a cup of coffee. As she was clearing

up the mess , the girl sitting next to her happened to glance at Nicky's right hand. There was a large

swelling at the (5)... " What on earth have you (6) ... to yourself ? Does it (7)...?

asked the girl. "Yes , it does. I think I've (8) ... it using the computer," replied Nicky. "I think

you'd better go and let the doctor (9) ... it," said the girl. " Let's hope there's no permanent

(10) ... to your hand".