—I wonder if Tina __________ our conference. —So do I. I'll ring you up if she __________.
_______ the secret of nature, the young scientist has little time for entertainment.
—Was it under the tree ______ you went away talking to a friend?—Sure. But when I got back there, the bike was gone.
In my home breakfast is ______ at 7 o’clock, which has ______ unchanged for 20 years.
To the people’s surprise, the number of deaths ________ the war ________ still rising.
As there’s no non-stop flight to Athens, we will have to fly to the city Paris and Rome.