Section A (15 marks)
Directions：For each of the following unfinished sentences there are four choices marked A，B，C and D．Choose the one that best completes the sentence.
21．These new ideas which need ________ sound fine.
A．trying on B．trying out C．to try on D．to try out
22．Tom was badly injured in the accident last week. A new manager____ to take his place since then.
A．has been arranging B．has arranged
C．was arranged D．has been arranged
23．—What do you think of the girl?
—Not only ________ well but also ________ modest.
