(2012·安徽) A lot of language learning, __________ has been discovered, is happening in the first year of life, so parents should talk much to their children during that period.
I hate ______ their complains all day. one of these days I’ll tell them what I really think.
The Browns held _____ they called"family day"once each year.
The stone on the river bank rolled under her feet; she was _____into the river,and she called out for help.
-What do you do yesterday afternoon? -I went to the bookstore,___ some books and visited my uncle.
Exercise is ______ as any other to lose unwanted weight.