45. A. happy

B. sometimes

B. after

B. what

B. real

B. And

B. talk

B. using

B. teachers

B. so

B. tried

C. forever

C. before

C. why

C. developing

C. However

C. worry

C. taking

C. children

C. very

C. nervous

D. even

D. without

D. how

D. developed

D. Although

D. complain

D. keeping

D. parents

D. too

D. busy

（一）根据下列短文内容，选择最佳答案。（共20小题，计20分）

A