小题1:The girl felt sad because her friends went swimming ________her.

小题2:He was ________to spend the summer with his cousins in England.

小题3:When you have eaten that, you can have ________ one.

小题4:Susan's mother mule a big cake on her _______ birthday.

小题5:I used to play basketball in my _______ time.

一根弹簧长5cm，在5kg以内每挂1kg重物伸长0.1cm，若挂x kg（0＜x＜5）的重物，这时弹簧长度L为（　　）

A．L=5+0.1x （cm）

B．L=5-0.1x （cm）

C．L=0.1x （cm）

D．L=5×0.1x （cm）