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The university estimates that living expenses for international students ______ around $8,450 a year, which ____ a burden for some of them.
A are；are               B. is；are                 C. is；is          D. are；is    

One third of our school _________ covered by trees, while the majority of our students ________ girls.

It is the only one of the most exciting movies ________ been shown this year.

Knowing how to think clearly and how to speak correctly ________ one confidence.

The New York Times ______ a wide circulation in that town and that people each ______ a copy in the subway is a common occurrence.

______ they grow they make sure that what is left in the ground after harvesting______ a natural fertilizer for the next year’s crop.

Modern teaching equipment as well as some computers _______ to the village school last week.

It’s said that the number of people ___ seriously injured in the earthquake of Japan on Oct 26^th 2013 ___  no more than 10.

According to my father, movies, such as the one you talked about yesterday, _____ not worth seeing.