Scarcely had they settled themselves in their seats in the theatre ______ the curtain went up

Air Asia aircraft of Indonesia, with 162 people on _____board, is reported to have crashed into the sea.

Driving the halfway I _____ mycar was out of gas.

Can you point out ________ two radios are the best

The little girl who got lost decided to remain ____ she was and wait for her mother. [ ]