Teachers have to constantly update their knowledge in order to maintain their professional ___.
A、consequenceC
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Mr.Smithgradually_____aknowledgeofthesubject.
Morewindpowerstationswill____________tomeetthedemandforcleanenergy.
Thedoctorshareshisphonenumberwiththepatients__________theyneedmedicalassistance.
Hewasnot_____totheclubbecausehewasn'tamember.
China'simageisimprovingsteadily,withmorecountries__________itsroleininternationalaffairs.
