单项选择题

The purpose in writing this text is ______.

A．to encourage people to recycle their rubbish
B．to introduce a recycling system for high rises
C．to describe the use of computer technology in recycling
D．to explain the need for rubbish collection in high rises

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热门试题

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B．rubbish chutes will become out of date before long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

Before dropping rubbish into the chute you have to ______.

A．lock the other floors' chute doors
B．check ff the container is full
C．press the correct button
D．break up the rubbish