—Now where was I ?---You _____me about your travels in Canada.

.Water as well as other resources ______ all over the world every day.

 –Why do you look so upset? –The electricity was cut off suddenly and my essay _______ unfinished since.

After getting lost in a storm, a member of the navy team ______ four days later.

—What’s the price of petrol these days?—It ________ frequently since last year.