My sister, an inexperienced rider, was found sitting on the bicycle______to balance it.

Don’t use words ,expressions or phrases __________ only to people with specific knowledge.

In the job interviews applicants often find themselves ______ unexpected questions, some very difficult to answer.

The sun began to rise in the sky, ________ the mountain in golden light.

 Unless ________ to answer questions, the pupils won't talk in Mrs Smith's class.