___1___ is known to us all is that China has launched Shenzhou VII spaceship, ___2___ made the country’s first spacewalk successful.

The air quality in the city, ________is shown in the report, has improved over the past two months.

__________, they couldn’t make her change her mind.

Don’t forget to turn to me if you have any trouble. —- __________________.

Were you late ________ the meeting—No, I arrived there ten minutes________the meeting started.