31. --______ one and a half days enough for the painting to be finished? --I don’t think it’s enough and only after _________ go on with it.
--- Why does the lake smell terrible? --- Because large quantities of water _________.
The disappointed father felt no way to live, ______ at the _____ son angrily.
After he became conscious, he remembered ______ and_____ on the head with a rod.
______, we had to put off the tennis match.
_______ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.