Read the passage.
Information
Plants are the source of more than half of all chemicals used in drug treatments. Many of these plants are found in the rainforest. For example, researchers are now using a plant from the rainforest to develop a dental gel. For hundreds of years people in Peru have chewed the leaves of this plant to ease toothache pain. Though not yet approved in this country, the ,begin underline,anesthetic,end underline, gel could soon replace the numbing shots often used during dental procedures.
Question
Which word has the same meaning as the underlined word?
Answer options with 4 options
1.
healing
2.
medical
3.
modern
4.
painkilling
1 answer
4. painkilling