on the street breathless，the boy was immediately taken to the nearest hospital.

As a young man , he’d rather have a room of his own, however small it is, than __ a room with someone else．

Not easy as the problem of pollution is____, no one should just stop trying.

The boy felt quite happy because he was closer now to ______ an answer of his own.

—How about the result?
—Well, it remains _______whether we’ve got enough support.

Entering the garden, I found it ____ with ____ leaves.

—David，could I use your car?
—Sorry，there is something wrong with it.I will have it________this afternoon.

I often dream of jogging out with snow _______ the ground.

________ global temperatures rising, the UN Climate Change Conference was held in Cancun（坎昆）, Mexico last year．

Joseph off at the airport, Sally finished her work earlier.