19  I received the text message from Katy.  20 You have no necessity to pay to use the office phone.  21Mike can read and write Japanese.  22 I didn't need to buy a stamp for my letter.  23 The email might be from Alex.   24 Jill told me the description of her holiday.  25 Companies oughtn't to ring people at home to sell them things.  26 This phone must  almost certainly be broken because I can't hear anything.