I noticed my little son ____ the words ____ on his small blackboard. [ ]

I ______ my university professor in thesupermarket near my house, which was out of my expectation.

You should thenew words that you don’t know how to spell.

Director Zhang Yimou often has hisfilms _______ local contents, which foreigners are not familiar ______.

______ Betty this morning?　— Not yet, but she is sure to be here before noon