21．Though she tried serveral times, she failed and had to.
A. give away B. give in C. give out D. give up
22．He completely recovered from his big failure and was determined to build a new life out oftheof his career.
A. advantage B. ruins C. efforts D. imagination
23．They offered a lot of useful information for your report. I can understand howyou must be feeling now .
A. frightened B. upset C. grateful D. curious
24．According to our teacher, we should take detailed notes in class because they are morethan our memory.
A. active B. reliable C. honest D. stubborn