Seeing a large crowd at the street corner，I became aware of________unusual happening

I suggest you delete the useless files on the computer which _______ too much space

The captain urged that the mission ______before dark

Guangzhou Evergrande has raised China’s hunger for soccer glory ever since the year 2013 ______ a series of its victories over other teams in and abroad China

1— Could you be so kind asto close the window?—______________.