To place the events in chronological order:
1) The Second Continental Congress meets for the first time.
2) Patriots fight the British at the Battles of Lexington and Concord.
3) The Declaration of Independence is approved.
4) George Washington takes command of the Continental Army.
The correct order is:
Second Continental Congress meets > Battles of Lexington and Concord > Declaration of Independence approved > George Washington takes command of the Continental Army.
This order reflects the sequence of events during the early stages of the American Revolutionary War. The Second Continental Congress convened before the outbreak of battles between Patriots and the British at Lexington and Concord. Subsequently, the approval of the Declaration of Independence followed, leading to George Washington assuming leadership of the Continental Army.