A、to rEAD thE Book By thE FAmousBritish writEr.
B、to CovEr thEir EyEs During A pErioD oF intEnsivE rEADing.
C．to visit DoCtors oF trADitionAlChinEsE mEDiCinE.
D．to rElAx thEir EyEs FrEquEntly whilE rEADing.