B2 - Phrases of the preposition ON

The owner of the hotel is a qualified chef, but he rarely cooks himself nowadays. However, ___________ he helps the head chef in the kitchen if the restaurant is busy.

• on a trip

• on sale

• on the phone

• on occasions

• on the whole

I do have a few suggestions that should improve your presentation, but __________ I think it was an excellent speech.

• on a trip

• on sale

• on the phone

• on occasions

• on the whole

We went _________ to Paris for a day on the train and saw the Eiffel Tower and Notre Dame Cathedral.

• on a trip

• on sale

• on the phone

• on occasions

• on the whole

She is supposed to be studying for her exam but whenever I go to her room she is ___________ chatting to her friends.

• on a trip

• on sale

• on the phone

• on occasions

• on the whole

We bought a stereo music centre that was __________ because it was in the display window.

• on a trip

• on sale

• on the phone

• on occasions

• on the whole

All the roads that led to the town centre were closed because of the flood so it was only possible to reach the main square _____________.

• on average

• on television

• on an expedition

• on guard

• on foot

A human heart beats 72 times per minute _____________.

• on average

• on television

• on an expedition

• on guard

• on foot

At the beginning of the 16th century, _____________ of the South American jungles, Balboa became the first European to look at the Pacific Ocean.

• on average

• on television

• on an expedition

• on guard

• on foot

The warders who are _________ at the Tower of London to protect valuable jewels are also known as “Beefeaters”.

• on average

• on television

• on an expedition

• on guard

• on foot

The film “JFK” is being shown ___________ on Monday night at 9 p.m. on Channel 4.

• on average

• on television

• on an expedition

• on guard

• on foot