21—I’d like to buy a new bicycle .
—Well ,we have several models _________.
A. to choose from B. of choice
C. to be chosen D. to choose
22.When you have finished the novel ,you will find the hero _________.
A. a person too perfect to be not true B. a too perfect person to be true
C. too perfect a person to be true D. too perfect a person to be not true