PDF chapter test TRY NOW

Find the relevant meaning from the below table:
 
Answer variants:
Unison
Thunderclap
Hurry
Blush
1.
 \(=\) To move or do things more quickly than expected or to make someone do
 
2.
 \(=\) Acting or speaking together, or at the same time
 
3.
 \(=\) To become red in the face, usually from embarrassment or shyness
 
4.
 \(=\) Used in similes to refer to something startling or unexpected