na, _______ bicycle is ______ popularmeans of transportation.

If human beings had been a bit less greedy and cruel, more birds and animals _______dying out.

Would you mind my smoking here . Look at the sign. It says “No smoking”.

I’m sorry I_______ my exercise book at home.-Don’t forget _______it here tomorrow, please.

Where _____ — I got stuck in the heavy traffic I _____here earlier