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Most business letters and government reports are the main situations _________ formal language is used. ^*
| A．where | B．that | C．what | D．which |
I shall never forget the days ________ I spent in Beijing University, ________ has a great effect on my life.
| A．that; which | B．which; that | C．when; that | D．when; which |
Jane _________ under the pressure of work and she had to stay in hospital for a month.
| A．broke up | B．broke down | C．broke out | D．broke away |
— Do you know how I can ________ him?
— On his mobile phone．
| A．learn | B．reach | C．seek | D．touch |
Although she has a lot of problems, she manages to remain ________.
| A．optimistic | B．cautious | C．concerned | D．upset |
Don't throw away the old books. Give them to ________ needs them．
| A．whoever | B．anyone | C．who | D．whomever |