The Peace Corps^(A) was^(B) establish^(C) on March 1, 1961, by then^(D) President John F. Kennedy.

The advisor told^(A) himself, while listening^(B) to the speech, that a dozen other reporters would has^(C) already asked^(D) that question.

At the start^(A) of the American Revolution, lanterns were^(B) hung^(C) in the Old North Church as a signal that the British were came^(D).

Linus Pauling has^(A) wins^(B) two Nobel Prizes^(C): the 1954 Nobel Prize in Chemistry^(D) and the 1962 Nobel Peace Prize.

On the huge^(A) Ferris wheel constructed^(B) for a world exhibition in Chicago in 1893, each of^(C) the thirty-six cabs could held^(D) sixty people.

To overcome^(A) rejection of a skin graft, a system for matching^(B) donor and recipient^(C) tissues has be^(D) developed.

Nails are^(A) commonly make^(B) of steel but also can^(C) contain^(D) substances such as aluminum or brass.

A patient suffering^(A) from amnesia may^(B) had^(C) partial or total loss^(D) of memory.

The idea of using^(A) pure nicotine to help^(B) smokers stop^(C) was first tries^(D) in the mid-1980's with nicotine-laced chewing gum.