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。
Lyingundertheskull,thehumanbraincontainsanaverageoftenbillionnervecellscalled______.
Iwaswritingareportlastnight;________Iwouldnothavestayeduplate.
Hetalkedalotaboutthingsandpersons________theyrememberedintheschool.
―________finedayitistoday!
Thethieftookawaythewoman’swalletwithout________.
