If the boy had _____ the dog alone it wouldn't have bitten him.
We’ll have to race _____ the clock to complete the work on time.
Cheer up! Never let your failures _____ trying harder.
— What was the trouble with you the day before yesterday?— When I practiced running, my strength _____ and I fell onto the ground.
They held a meeting ____ they could hear everyone’s idea.
Lily’s mobile phone was left in a taxi accidentally, _____ again.