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hokage12012001
2 năm trước
cho S=1-3+3^2-3^3+....+3^98-3^99 Tính S từ đó suy ra 3^100:4 dư 1
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When eating, most Americans hold a fork in the ____ (1) ____ with which they write. Americans eat away from home often, and usually they pay for their own meals when dining with friends. When Americans greet one another they often exchange a firm ___ (2) ____. They may greet strangers on the street by saying “Hello” or “____ (3) ____”. Friends often greet each other with “How are you?” and respond “____ (4) ____”. Americans do not really expect any other answer to the question “How are you?” because it is a way of ____ (5) ____. Except in formal situations, people speak to each other by their given names once they are acquainted. Câu 1. A. head B. mind C. notebook D. hand Câu 2. A. adventure B. handshake C. militant D. occasion Câu 3. A. Goodbye B. Good morning C. Not bad, thanks D. Take care Câu 4. A. Bye B. So long C. No smoking D. Fine, thanks Câu 5. A. having dinner B. shaking hands C. saying hello D. saying goodbye

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