a. 1. - Could I speak to Mr. Smith? - Which Mr. Smith do you
want?
2. - Give me the money. - What money?
3. - Could I have my books back, please? - Which are your
books?
4. - I’m going to buy some books. - What books do you need
to buy?
5. - Put one of those logs on the fire. - Which one?
6. - Where did you put the photos? - What/Which photos?
7. - Anna and Louisa are nice girls. - Which/What class are
they in?
8. - My son is nearly seventeen. - What subjects is he taking?
9. - I fly either Swissair or British Airways. - Which airline do
you prefer?
b. 1. What kind of films do you like?
2. I don’t know what/which dress to wear tonight.
3. Which of these sets do you recommend?
4. What/Which buses go to the town center?
5. What is your favourite food?
6. What food do you like best of all?
7. Which food do you prefer, French or Italian?
8. I’d like to get a job, but I do not know what job suits me best.
9. A teacher soon gets to know which children are really
interested in English, and which ones are not interested in the
least.