In the following questions, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
A dark horse
All at sea
Bear up with
To clear the decks
Improve the bracketed part of each sentence.
The red and (the white rose) looks beautiful
I (have seen) him last year
Shashank appealed to the judge (for his release) from jail.
Rohan has no acquaintance (from Sourabh).
His mother has been ill (for) five days ago.