—You've made great progress in your studies of English, haven't you?—Yes, but much______.
Great changes ______ in my school in the past ten years.
________ you interrupt now? Can’t you see I’m on the phone? _ Sorry, Sir, but it’s urgent.
Is this school ______ you used to study?
______ nice and delicious, the fried chicken was soon sold out.
You can’t imagine _____ when they received these nice Christmas presents.