小题1: My uncle works in a shoe   ▲  (工厂) in the north of China.

小题2:The famous d   ▲   have worked for a week , the program has been designed .

小题3:If you can answer all the questions     ▲    (正确地)，you will be the best .

小题4: I want to chat with my friends     ▲    (on the Internet) at weekends .

小题5: Guangdong is in the s   ▲  part of China.

小题6:They clapped with         ▲       (兴奋) while the stars were singing .

小题7:Please     ▲  (打印) the picture on the paper for me.

碎纸机卡纸，造成这种故障的原因可能是（　　）。

A．电机过热

B．进纸过量

C．电压过低

D．切纸部件损坏