Thebasicunitinthestudyofmorphologyis______.
A、theinternalstructureB
正如音位是音系学研究中的基本单位一样，词素是形态学研究中的基本单位。
Countrylifeisbetterthancitylife________itoffersfreshairandnoiselessenvironment
Theengineer______myfatherworksisabout50yearsold.
Theconclusionfromthestudyisnotdefinite;itisjust________.
Acompoundisthecombinationofonlytwowords.
Hesaidthatthegroup________himaletterandaskedhimtogothereforaninterview.
