单项选择题

Before dropping rubbish into the chute you have to ______.

A．lock the other floors' chute doors
B．check if the container is full
C．press the correct button
D．break up the rubbish
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单项选择题
When he says You won't be for long the writer means that ______.
A．you'll soon be living in a cleaner building
B．rubbish chutes will become out of date before long
C．you won't wait long for your turn to recycle rubbish
D．it won't be long before you'll have to recycle your rubbish
单项选择题
A．spendB．payC．costD．take
A．spend
B．pay
C．cost
D．take
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