3. The error was due to careless pure and simple.

The error was due to 　　　　　carelessness.

2. We were forced to flee the country.

We were forced to　　　 　　　　　　　　　　　safety.

1. They celebrate their wedding anniversary once a year.

They celebrate their wedding anniversary　　　　　 .

5. They all　　　　 　(flee from) the burning building last night.

4. The sailor had 　　　　(abandon) the sinking ship.

3.　　　　　　 　(not yell) at me like that.

2. The clouds 　　　　(reflect) in the lake. Didn’t you see them?

1. 　　　　anyone 　　(witness) the car accident yesterday?

10. She went to the post office to draw her 　　　　　(退休金).

9. He got in at the 　　　　　　(浅的) end of the swimming pool.