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7.1 _( walk ) along the street when suddenly  it began

to rain.

6. They_( plant) many trees last  year.

5. Her uncle is a writer and he_(write) ten  books al?ready.

4. We_(study) English for more than three  years.

3. Look' Your cousin Brian _(play) the  guitar over

there.

2. They_( build) four bridges so  far.

根據句意，用括號內所給動詞的適當形式填空。

1 .My father_(read) ten books since last  year.

5. 你曾參觀過頤和園嗎？ ____the Summer Palace?

4. 然而，我還沒有游覽長城-

However,I__the Great Wall yet.

3. 我已經看過了全北京幾乎所有的名勝古跡。

I___all of ihe places of interest  around

Beijing.