(2012安徽卷)Alot 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.
They ___ have arrived at lunchtime but their flight was delayed.
The next thing he saw was smoke ___ from behind the house.
The new stadium being built for next Asian Games will be ___ the present one.
Planning so far ahead ___ no sense—so many things will have changes by next year.
The Yangtze River is the third ___ in the world.