51.

1. handle
2. eliminate
3. achieve
4. address

52.

1. his own
2. our own
3. your own
4. her own

53.

1. around
2. above
3. at
4. across

54.

1. promoted
2. promoting
3. having been promoting of
4. having been promoted

55.

1. put
2. got
3. sits
4. stands

56.

1. but for
2. but that
3. but by
4. but also

57.

1. arguably
2. excessively
3. specifically
4. exceptionally

58.

1. well
2. better
3. the very
4. the most

59.

1. those
2. one
3. this
4. it

60.

1. greet
2. welcome
3. deserve
4. celebrate

(Reference keys.)