He is busy with his work ______________?
Correct answer: C. up to the hilt
- A. inns and out
- B. up to neck
- C. up to the hilt
- D. kith and kin
Explanation
“Up to the hilt” means completely or fully, so being busy with work up to the hilt means being extremely busy. The other expressions refer to different ideas such as relatives or limits.
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