Waiting another day to book my ticket would have meant paying a lot more. // IF // I would have had to pay a lot more _______ another day to book my ticket.

When a leaf or stem is sliced, plants signal distress ____ releasing the gas ethylene over its surface.

'I wish I hadn't told Angela about the row with Miriam,' said Carla. // REGRETTED // Carla ________ about the row with Miriam.

For many immigrants, the dream of a new life soon _____ sour. A) TURNED B) CONVERTED C) SWITCHED D) MOVED

The gas molecules are collected in a jar and bombarded with laser beams, _____ makes them vibrate.

Only under _______ circumstances can you bring animals into the restaurant. EXCEPT

Scientists have discovered that the _____ a plant is subjected to stress, the louder the signal it emits.

There has been a severe _______ of jobs since the last recession. SHORT

There are many career ______ available for young people in technology. OPEN

Some fruit needs to be separated from other fruit, so ___ to prolong its freshness.

'Have any of you stayed in the Hotel Belmondo?' asked Kim. // IF // Kim asked _______ stayed in the Hotel Belmondo.

The hospitality sector has a negative _______ among some employees, because of the low wages. PERCEIVE

Despite the _____ difficulties they encounter, many foreign workers adapt to their conditions. A) SEVERAL B) HIGH C) NUMEROUS D) HEAVY