Transaction - how many ADOQuery required?

Hi. Consider the following Transaction. Can I use only one ADOQuery (i.e.
ADOQuery1) for all the three "INSERT INTO" statements?
(Delphi 7)

// start the transaction on the connection
ADOConnection1.BeginTrans;
try
with ADOQuery1 do
begin
//INSERT INTO statement to table1
ExecSQL;
end;
with ADOQquery2 do
begin

//INSERT INTO statement to table1
ExecSQL;
end;
with ADOQquery3 do
begin

//INSERT INTO statement to table2
ExecSQL;
end;
ADOConnection1.CommitTrans;
except
On E:Exception do
begin
ADOConnection1.RollbackTrans;
end;

end;//try


.

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