Đề 12: Đề thi toefl itp 15 câu đầu

In the textile industry, the term “gunny” refers to —burlap that is not of the best quality.

The skyscraper, —,is an architectural form that originated in the United States.

— were stones piled at intervals.

Some procedures used for laboratory analysis of archaeological specimens are — procedures conducted in crime laboratories.

The windmill, which has been used for hundreds of years to pump water and grind grains, — redesigned to produce electricity.

From her early teens —.

Adhesive, such as glue, tape, and gum, vary with the purpose — intended.

Alaskan forests — five or six miles inland from the Pacific coast.

The colors of a rainbow — arranged in the same order.

—, The Yearling, won a Pulitzer Prize.

With age, the mineral content of human bones decreases, _____ them more fragile.

Not until Kentucky’s Mammoth Cave had been completely explored in 1972 _____.

The first explorer _____ California by land was Jedediah Strong Smith, a trapper who crossed the southwestern deserts of the United States in 1826.

In 1867 Russia sold Alaska to the United States, and in 1958 _________ the forty-ninth state.

_____ many copper mines in the state of Arizona, a fact which contributes significantly to the state’s economy.