单项选择题

What was the author’s purpose when writing this passage

A．To give practical instruction for pruning a tree.
B．To give a gardener description of pruning.
C．To explain how trees develop disease.
D．To discuss different methods of pruning.
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单项选择题
How many common forms of sugar are exemplified in this passage
A．One.
B．Two.
C．One hundred.
D．Several hundreds.
单项选择题
What does the woman want the man to do
A．She wants the man to listen to the instructions and observe.
B．She wants the man to watch white she performs the operations.
C．She wants the man to ask questions so that she can help him.
D．She wants the man to try to do it while she gives him instructions.
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