21. As you grow older, you will have ______ better understanding of ______ life.
A. a; the B. the; a C. /; the D. a; /
22. Jack’s family ______ their holiday in Shanghai this time next week.
A. are enjoying B. are to enjoy C. will enjoy D. will be enjoying
23. Had Lang Lang’s father not been strict with him, we ______ the chance to enjoy the performances of this world-famous pianist at present.
A. wouldn’t have B. hadn’t had C. shouldn’t have D. wouldn’t have had
