I haven't seen multiple choice in the main subjects but I did see some on a BTEC type exam for 16 year olds about the world of work. I teach mainly maths and haven't seen multiple choice papers for years.
The exams have changed though sqad in some big ways:
-Whereas O level papers in our day were 2½ hours long many papers now are as short as 45 mins and generally not more than 1½ hours long
- The questions are more shorter and there are more of them. In Maths rather than five or six long questions that take 20-30 minutes each there will be lots of much shorter questions, ensuring most topics are covered and assessed.
- Questions are also structured more than they used and are much more 'user friendly'. So, if there is a question about a shopping bill there will be a picture of Danii and Amjit, a picture of bottles of cola and chocolate bars labelled with their prices, and a picture of each of the different coins they have (£1, 50p,...1p).
-There are two tiers of exam (some subjects have had tiers) in some subjects (maybe all). The Foundation tier covers grades G to C and is really the old CSE. The Higher Tier generally covers C-A* although I think you can get a D.
-Modular exams means you do a few topics at a time, spread over a couple of years, and can resit each one and use the higher score. Some students do each modular exam twice and then also sit a non-modular version so that they can use their best result.. All these exam entries are money spinners for the boards and a drain on resources for schools