.The universe began with the Big Bang 13.7 billion years ago, with everything___ in space smaller than a grain of sand.
With his horse ____to the tree, the man had a rest in the shade.
The boy broke the rule ______ he got punished.
The meetings are very short, so there is little _____ to have a real discussion.
After the heavy rain, the level of the lake rose ___ 1 meter ___ 8 meters.
George. W. Bush, _______ President of the United States, is to visit China _______ third time.