В коробке 8 жуков и пауков, всего у них 54 ноги. Сколько в коробке жуков и сколько пауков?

1. Mr. Smith is teaching us at present. He is substituing for Mr. Reese who is our regular teacher.
2. "I am going to visit Peter tonight. He is leaving tomorrow morning." — "Is he coming back the same day?" — "I don't know".
3. John often stays at a hotel when he comes to town, but tonight he is staying with us.
4. The fourth class always meets on the first floor, but our class meets on the second floor. However, because they are painting our regular classroom now, we are going to meet in the club-room today.
5. "Nick is leaving today". — "What train is he taking for his journey?" — "He is catching the 5.50 train".
6. The mechanic is repairing my car today. So I must go to work by the udnerground.
7. "Are you writing to him tonight?" — "Yes, I always write to him on his birthday. Do you want to send any message?" — "Certainly."
8. John says he is leaving for Chicago on the fifteenth.
9. I am going to the seaside on my holiday.
10. My brother is coming to see me next week.
11. Whenever I call at the Smiths' home, they are playing cards. I really think they play every night.
12. Jack makes at least ten spelling errors in every lesson.