If I ____ here earlier, I ______the English speech competition .

Don’t leave matches or cigarettes on the table within the _____ of little children.

__in the 1800s and first mass-produced in Germany, the harmonicawas designed to play simple folk tunes.

The topic, _______ we devoted a heated discussion last night, is a hot issue at present.

Jill_______be in the office now. She has gone to the reading room.