20. To be able to qualify as an interpreter, many years of intensive language study are required for non – native speaker. By the end of this year, Chen ………. English for three years, but he will still need more training and experience before he masters the language. A. will be studying B. has studied C. will have been studying D. has been studying 21. “May I speak to Dr. Paine, please?” “I’m sorry, he ………. a patient at the moment. Can I have you?” A. is seeing B. sees C. has been seeing D. was seeing 22. “When are you going to ask your boss for a raise?” “………. to her twice already! I don’t think she wants to give me one.” A. I’ve talked B. I’ve been talking C. I was talking D. I’d talked 23. “Do you think Harry will want something to eat after he gets here?” “I hope not. It’ll probably be after midnight, and we ……….” A. are sleeping B. will be sleeping C. have been sleeping D. be sleeping 24. “Paul, could you please turn off the stove? The potatoes ………. for at least thirty minutes. “I can’t. I’m feeding the baby.” A. are boiling B. boiling C. have been boiling D. were boiling 25. “Is it true that spaghetti didn’t originate in Italy?” “Yes. The Chinese ………. spaghetti dishes for a long time before Marco Polo brought it back to Italy.” A. have been making B. have made C. had been making D. make

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