单项选择题

It is a good idea for parents to monitor the______as well as the kind of television that their children watch.

A．number
B．size
C．amount
D．screen
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单项选择题
This morning Jack came to school late______.
A．than usual
B．as usual
C．like usual
D．like usually
单项选择题
It is hot and dry, and the flowers need______.
A．being watered
B．be watered
C．to water
D．to be watered
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