since because so... that... until although
1.When you cross the street, you must wait_______ the traffic lights turns green.
2.I’m looking after Tony today. He’s been in my house_______ 8:00 this morning.
3.I hate traveling by air _______ I usually have to wait for hours before the plane takes off.
4.The film is _______ interesting _______ all of us can’t help laughing.
5._______ she is fifteen, she can’t cook or tidy up.