Plans have been proposed ______ the largest dam in the world to be built along the Congo river.
John and I _____ friends for eight years. We first got to know each other at a Christmas party. But we _____ each other a couple of times before that.
— Alice came back home the day before yesterday.— Really ? Where _____?
— I will come to attend your lecture at 10:00 tomorrow.— I’m sorry, by then my lecture will have ended and I _____ my guests in my office.
— Has Jack finished his homework yet?— I have no idea;he _____ it this morning.
The traffic in our city is already good and it _____ even better.