Pascal: Nhập một số nguyên n, đếm xem có bao nhiêu số nguyên tố trong khoảng từ 1 đến n.

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1. Breakfast / serve – where and when? Breakfast is served in Pierrot’s Restaurant between 7 and 9:30 am. 2. Dinner / serve – where and when? ……………………………………………………………………………………………… 3. Newspapers / sell – where? ……………………………………………………………………………………………… 4. Telephone calls / can make – where? ……………………………………………………………………………………………… 5. Rooms / clean – who by and how often? ……………………………………………………………………………………………… 6. Hot water / supply – when? ……………………………………………………………………………………………… 7. Films / show – where and when? ……………………………………………………………………………………………… D) Put the verbs in brackets into PAST SIMPLE PASSIVE: Two men ….. were seen ……. (see) breaking into a house in my street last night. The police …………………………. (call) and they arrived very quickly. One man ………………………. (catch) immediately. The other escaped, but he ……………………………. (find) very soon. Both men ………………………………… (take) to the police station where they ……………. ………………………. (question) separately by a police officer. The two men ……………….. ………………………. (charge) with burglary.