binomials
eg pros and cons
prepositions
100

Each and .......... member of the audience gave a standing ovation to the cast.

each and EVERY

100

Recent international conflicts have given rise ......... great unease about the future. 

give rise TO

200

The team were well and ........... defeated by a far superior opposition.

well and TRULY

200

It's almost impossible to feel ........ ease when you are being tested by a panel of judges.

at

300

Over and ........ the grading method used, the fairness of the system is crucial.

over and ABOVE

300

The enquiry is already ......... hand and the findings should be released early next year.

in hand (in progress; being worked on or dealt with now)

400

It was far and ......... the best concert I've ever been to.

far and AWAY

400

Cycling is potentially very dangerous in the city - you have to keep your wits ........ you.

keep (all) your wits ABOUT you 

(be ready to think quickly in a situation and react to things you are not expecting)

500

Everyone was delighted and relieved that despite their ordeal the hostages were safe and ...........

safe and SOUND

500

Completing the 900 km Cammino di Santiago ........ foot is an astounding achievement.

on foot