5th box -Flashcards

Multiple choice questions

Question:

1. Economical

having great mental ability; clever داری توانایی ذهنی زیاد ، زرنگ a. Bernie devised an ingenious plan to cheat on his income tax. b. Rube Goldberg was a journalist who won fame for his ingenious inventions. c. The master spy had an ingenious way of passing secrets to the agent.
make (machinary) smooth and easy to work by putting on oil, grease, or a similar substance با قرار دادن روغن ، گریس و مواد مشابه ، کار با ماشین آلات را راحت و هموار کردن ، روغن کاری کردن a. The bulky wheels of a railroad train must be lubricated each week. b. A large quantity of grease is needed to lubricate an airplane engine. c. When a watch is lubricated, it keeps more accurate time.
careless; heedless; wild بی دقت ، بی توجه ، وحشی a. We must not ignore reckless drivers; we must take them off the road. b. After breaking his hand fighting recklessly, Arthur decided to be more cautious in the future. c. The reckless smoker ignited the entire forest.
not wasting money or time پول یا وقت را هدر نمی دهد ، اقتصادی ، صرفه جو a. I find it economical to shop in the large supermarkets. b. Marissa was praised for her economical management of the budget. c. The President made Congress aware of the need to be more economical.

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