5th box -Flashcards

Multiple choice questions

Question:

1. Essential

costly; high-priced گران ، پرهزینه a. Because diamonds are scarce they are expensive. b. Margarine is much less expensive than butter. c. Shirley's expensive dress created a great deal of excitement at the party.
once a year; something that appears yearly or lasts for a year سالی یکبار ، چیزی که هر ساله پدیدار می شود یا به مدت یک سال طول می کشد ، سالانه a. The annual convention of musicians takes place in Hollywood. b. The publishers of the encyclopedia put out a book each year called an annual. c. Plants that live only one year are called annuals.
necessary; very important ضروری ، بسیار مهم a. The essential items in the cake are flour, sugar, and shortening. b. It is essential that we follow the road map. c. Several layers of thin clothing are essential to keeping warm in frigid climates.
able to be seen قابل رویت a. The ship was barely visible through the dense fog. b. Before the stars are visible, the sky has to become quite dark. c. You need a powerful lens to make some germs visible.

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