_____ a cold Sunday evening， a thief broke into her house and stole a lot of money.

Bicycling is good exercise；________, it does not pollute the air[ ]

The astronauts found that ______ the spaceship went further and further into space, it became more and more difficult to control its own movements

Would you like something to eat– . I’m a little hungry.

Have you seen Jack His mother is looking for him all the afternoon.–No, I haven’t. I am sure her mother________be very worried.