Add spaces: Brussels,1June2011.

Answer: Brussels, 1 June 2011.

Add spaces: BeforebuyingavacuumcleanerDysonDC26Allergyspecifyallyouroptions,equipment,appearanceandwarrantyfromtheseller.Pleasenotethatwearenotengagedinthesaleandmanufacturewarranty.

Answer: Before buying a vacuum cleaner Dyson DC26 Allergy specify all your options, equipment, appearance and warranty from the seller. Please note that we are not engaged in the sale and manufacture warranty.

Add spaces: ThereareTWObiologicaldifferencesweneedtounderstand.

Answer:
There are TWO biological differences we need to understand.