Tích của hai số nguyên tố là 143. Tổng của hai số nguyên tố là bao nhiêu?

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PART 3QUESTIONS 11-15Complete the five conversations. For conversations 11-15, mark A, B or C on the answer sheet. 11 Excuse me, when does the next train leave? A From Platform 4. B Yesterday. C In ten minutes. 12 When can we go to the cinema? A I'm free on Saturday.B I like the cinema. C I hope you can come. 13 Have a good holiday. AYou have. B. You will. C. You too. 14 How do you like your meat done? A I don’t like it.B I like it very much.C I like it well done. 15 How do you do? A Very well.B I’m a doctor.C How do you do? QUESTIONS 16-20Complete the conversation.What does David say to the waiter?For questions 16-20, mark the correct letter A-H on the answer shee t Waiter: Good evening, sir. How can I help you? David: 0 ......... B Waiter: Certainly, sir. This one by thewindow? David: 16 .............. Waiter: And what would you like to eat? David: 17 ........ ................ Waiter: Spaghetti with meat and tomatosauce is very nice, or there is fourcheesepizza. David: 18 ........ ...... Waiter Fine. And would you like anything with it? Garlic bread or ... David: 19 .............. Waiter: OK. And to drink? David: 20 ...... ........ Waiter: Yes, certainly. So that’s one fourcheesepizza, one green salad andone mineral water. Thank you, sir. A Have you got mineralwater? b Good evening. I'd like atable for one. C How much is it? D What have you got? E I think I’ll have the pizza. F Can you bring me themenu, please? G Nothing more, thanks. Ohyes, perhaps a green salad. H Yes, that’s fine giúp em zới