21. The movie Transformers 3 brought in 1.2 billion dollars in 2011, which was ______ new height in _____ director’s career.
A. a; a B. a; the C. the; a D. the; the
22. The bad weather was partly ________ for crop failure this year.
A. blame B. to blame C. blaming D. to have blamed
23. News reports say peace talks between the two countries _______with no agreement reached.
A. have broken down B. have broken out
C. have broken away D. have broken up
