（ ）He spent about twenty-three _____. A. week B. hour C. hours
( ) Chinese people invented paper for .
( ) Nine childrentheir grandparents last week.
( ) The man sitsunder the tree.
( ) The mouse is front of the cat.
( ) first, I fell over. But it didn’t hurt.
.
their grandparents last week.their grandparents last week.
under the tree.
front of the cat.
first, I fell over. But it didn’t hurt.
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