6．Mrs Brown said nothing at the meeting, ____ ____ ?

5．He can read the book in the room, ____ ____ ?

4．The Kangs had to wait for you for long, ____ ____ ?

3．The boy has a dog, ____ ____ ?

2．Lucy goes to school by bike, ____ ____ ?

1．It's cold, ____ ____ ?

18．They made the machines themselves.

　　____ they ____ the machines themselves?

Ⅳ ．完成下列反意疑问句：

17．They have a class meeting every other week.

　　____ they ____ a class meeting every other week?

16．He often goes to the library.

　　____ he often ____ to the library?

15．I must finish my homework before eight o'clock.

　　____ you ____ your homework before eight o'clock?