下列各句中，表达得体的一句是（ ）

The argument remains extremelyheated it is necessary tofrequently update teaching material

I wonder if this is the computer you want______ .

1—Who’s the girlin red—Sorry, I don’tknow ____. —____ is a new student.

Over the past decades, sea ice _______ in the Arctic as a result of global warming