5．Mary has already entered a writing competition．（改为否定句）

→Mary ________ entered a writing competition ________．

4．There were many stones in the mountains three years ago．（改为现在完成时）

→There ________    ________ many stones in the mountains since three years ago．

3．The project has ________ our university five ________ yuan．（根据汉语提示完成句子）

我们的学校在这个项目上已经花了50亿。

2．My father has stayed in Tianjin for two weeks．（就划线部分进行提问）

       →________    ________ has your father stayed in Tianjin?

1．My sister saw a very good film during the holiday．（改为一般疑问）

→________ your sister ________ a very good film during the holiday?

10．When you read in a newspaper，try not ________ （translate）every word．

9．At five o’clock last night，my sister and I ________ （watch）TV．There was a very good programme on．

8．Project Hope has ________ （raise）money from people at home and abroad．

7．Li Yinming ________ （stop）going to school a few years ago．

6．Have you heard the ________ （late）news? Some scientists have sent a spacecraft to Mars．