Choose the alternative which best expresses the meaning of the highlighted idiom/phrase.
Don't lose patience,things will improve $by\, and\, by$.

Choose the alternative which best expresses the meaning of the highlighted idiom/phrase.
The dacoit murdered the man $in\, cold\, blood$.

Choose the alternative which best expresses the meaning of the highlighted idiom/phrase: "He is in the habit of $throwing\, dust\, in\, his\, superiors'$ eyes."

Choose the alternative which best expresses the meaning of the highlighted idiom/phrase: "$I$ hope it will not $put\, you\, out$ if $I$ am late."

Choose the alternative which best expresses the meaning of the highlighted idiom/phrase.
The old father $brought$ home the moral of unity by asking each of his sons to break the bundle of sticks.

Some idioms/phrases are given below together with their meanings. Choose the correct meaning of the idiom/phrase: 'To end in smoke'.