Teachers have to constantly update their knowledge in order to maintain their professional ___.
C
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Mycameracanbe_____totakepicturesincloudyorsunnyconditions.
Willallthose_____theproposalraisetheirhands?
Wehaveenteredintoanage_______dreamshavethebestchanceofcomingtrue.
Hehasthe_____ofanathlete:hereallygoesallouttowin.