Hi the answer is lll only
I would put that he answer is D. Because if he is writing about cuisine, then the best way to figure out the answer is to ask someone who knows about it.
Answer: exposure
Explanation:
"To expose" is a verb that refers to putting someone at risk from something harmful. Exposure refers to the act of being exposed to something dangerous, such as radiation. So the best word to complete the sentence is "exposure":
Marie Curie conducted pioneering research on radioactivity and discovered the radioactive elements, not knowing how deadly exposure to radiation could be.
Answer:
D.) have+verb=ing
Explanation:
The present perfect tense is used to explain something that happened in the past and continues to happen
