1.

1. keep
2. turn
3. give
4. put

2.

1. spot
2. district
3. zone
4. park

3.

1. depend
2. fail
3. concentrate
4. center

4.

1. turned
2. devoted
3. adapted
4. adjust

5.

1. to
2. for
3. at
4. on

(Reference keys.)