51.

1. regard
2. regards
3. regarded
4. regarding

52.

1. care
2. treat
3. cure
4. deal

53.

1. Towards
2. Pro
3. Against
4. Dealing

54.

1. expect
2. except
3. expert
4. express

55.

1. last
2. least
3. best
4. worst

56.

1. make
2. do
3. take
4. have

57.

1. patience
2. patient
3. patienthood
4. patients

58.

1. extent
2. extension
3. extensive
4. extend

59.

1. taken
2. fetched
3. given
4. done

60.

1. physical
2. physic
3. physics
4. physician

(Reference keys.)