There ... several reasons why I am learning English.

One of the most important aspects of employee satisfaction ... a sense of control over the work environment.

In that year, the total rainfall in California ... only 49 percent of the historical average.

Before cable television became common, there ... only four television stations in most parts of the country. Now there are hundreds.

There ...at least three resons why a college degree is important today.

Unlike the university library, the public library ... material for the general public.

Both the China Institute and the Brooklyn Museum ... Asian art.

The walkway over the freeway is dangerous at night because it ... enough lights.

Beginning in 1921, American women ... the right to vote.