Add spaces: SignWritingiscommonlyusedforstudentnewslettersandsimilarpurposes.

Answer: SignWriting is commonly used for student newsletters and similar purposes.

Add spaces: TransferfromLondonSW4ClaphamtoLondonHeathrow(LHR)airport

Answer: Transfer from London SW 4 Clapham to London Heathrow (LHR) airport

Add spaces: Havebeenvisitingartexhibitionormuseumwithinthelastmonth

Answer:
Have been visiting art exhibition or museum within the last month