Exercise 10. Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks.
HEALTH DETECTOR
Scientist Hayat Sindi's device is the size of a postage stamp, and it costs just a penny. But it could (111) ____ millions of lives. In many parts of the world, doctors and nurses work with no (112) ____ or clean water. They have to send health tests to labs and wait weeks for results. But this little piece of paper could change that. It (113) ____ tiny holes that are filled with chemicals. These chemicals are able (114) ____ health problems. A person places a single (115) ____ of blood on the paper. The chemicals in the paper change (116) ____ the blood and indicate (117) ____ or not the person has an illness.
111. A. build B. keep C. start D. save
112. A. electric B. electrical C. electrician D. electricity
113.A. contains B. invents C. provides D. supports
114. A. detect B. detecting C. to detect D. to detecting
115. A. bit B. drop C. piece D. slice
116. A. although B. because C. due to D. in spite of
117. A. as if B. either C. neither D. whether
