题目内容：

词形变换：根据句意，写出所给单词的适当形式。

1.My classmates are from six ________ (country).

2.Danny and Jenny often go for a ________ (walk) after supper every day.

3.An airplane is ________ (fast) than a bus.

4.Laughing ________ (loud) is good for your health.

5.I can see some girls __________ (play) on the square.

6.“Where ________ (be) you yesterday?” “I was in the library.”

7.Look! Jenny is________ (look) out of the window of the train.

8.The ________ (child) are packing their suitcases. They are going to Beijing.

9.My father________(go) to the factory from Monday to Friday.

10.Danny________(break) his tail at the Palace Museum last week.