The poor man is affected _____ arthritis.
Aon
Bwith
Cof
Dfor
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Related Questions:
Why don't you look _____ the dictionary to get the correct meaning of this word?
The old man was overwhelmed ______ grief at his son's death.
He is senior -------- me
Fill in the blank using the right preposition.
There is a river --------------------------my house.
Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
Deoxyribonucleic acid (DNA) is a very special molecule. It (1) ................................ as the code for all life on Earth, holding the cellular instructions to (2)............................. everything from a beetle to a human. Because DNA is (3)............................. species, it's like a product barcode in a supermarket. As animals and plants live their lives, they (4)................................. their DNA into their environment (5)................................. to each fragments of dead skin, hair, saliva, scat, leaves or pollen. These traces make up environmental DNA. There's enough DNA in water and even air to tell species apart. Select the most appropriate option to fill in blank no. 1.