India has the second _______ population in the world.
Without proper lessons, you could ____ a lot of bad habits when playing the piano.
You’d better fly somewhere in the west. Then you can ____ a hire car and travel around.
John _____ knowledge of radio just by staying around the radio station.
It is sleeping late in the morning that _____ being late for work.
Firemen said the fire wasunder control, but they warned that the change in the weather might ______ new fires.