7. It was not until the sub prime loan crisis ______ great damage to the American financial system that Americans ______ the severity of the situation.

A. caused; realized B. had caused; realized

C. caused; had realized D. was causing; had realized

8. ______ made the school proud was ______ more than 90% of the students had been admitted to key universities.

A. What; because B. What; that

C. That; what D. That; because

9. Information has been released ______ more middle school graduates will be admitted into universities this year.

A. while B. that C. when D. as

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