21. The beautiful girl called Jekejunyi is on her way to _____ a famous singer.
A. becoming B. become C. be becoming D. have become
22. People often have this belief _____ development is bad for the environment, but it does not
have to be true. .
A / B. that C. which D. what
23. Can you imagine ______ without friendship in your school life?
A. been B. to be C. being D. be
