1.If the launch in 2005 is successful,China will be the third country ____ its astronauts into space after Russia and th

1.If the launch in 2005 is successful,China will be the third country ____ its astronauts into space after Russia and the USA.
a.send b.sends c.to send d.sending
2.My mother is used()her car in such heacy traffic.
a.drive b.to drive c.to driving d.driving
3.When i saw her face,i knew she()the good news.
a.had b.has had c.had had d.was having
4.He said that he ()the film before,so he ()go to the cinema with us.
a.saw;won't b.had seen;wouldn't c.has seen;wouldn't d.would see;won't
4.We ()to work on foot,but now we ()by bus.
a.usually go;have gone b.used to go;are used to going
c.was used to going;going d.has been doing;have been going