After reading ________ of books by great authors for some time, the boy decided to go on to read the originals.

A．More and more people are applying for unemployment insurance.
B．Unemployment rate is not likely to rise quickly nowadays.
C．Losing jobs doesn't necessarily lead to unemployment.
D．Today's labor market is much too complicated than Coolidge's time.

A．will do a part-time job along with the full-time job
B．would rather stay at home than apply for a part-time position
C．would be fired if they can not finish the job quickly
D．will agree to have their working hours shortened if. required