4.He lost the key to his bike on his way to the lecture. (对划线部分提问)

________ did he ________ on his way to the lecture?

3.These boy preferred detective stories to science fiction. (保持句意不变)

These boy liked reading detective stories ________ ________ science fiction.

you tell me what weight the box is? (保持句意不变)

Do you ________ how ________ the box is?

2.The postage is three yuan and five jiao. (对划线部分提问)

________ ________ is the postage.

6.How ________ it sounds. (interest)

5.It’s a ________ to have a picnic with all the family members. (please)

4.At the ________ of this century, the APEC conferences were held successfully in Shanghai. (begin)

3.In ________ weather, the old had better stay at home. (freeze)

2.On a ________ night, you can see thousands of stars in the sky. (clearly)

1.Thank you for your ________ to us. (kind)

20.(　　 )“ May I put my bike here？”

“Sorry，you mustn't．Please look at the sign．It says ’________'．”

A．no parking　 B．no photos　　 C．danger　　　　 D．stop