Did you telephone Uncle Sam our plan for the Christmas holidays on his farm? — Yes, he was happy about our arrival, and he eagerly asked when ______

Lily and Kate invited me at their house tonight.

oject__________, my colleagues and I had aparty to celebrate it.

Overpopulation is a terrible threat to the human race.Yet it is probably ____ a threat to the human race than environmental destruction.

I arrived late and missed theflight I the traffic tobe so heavy