The flowers his friend gave him will die unless______ every day.
33. Generally speaking, ______ according to the directions, the drug has no side effect.
32. What the leader referred to in the report was really something _______.
31. After he retired from office, Rogers _______ painting for a while, but soon lost interest.
30. Rather than ______ that film, I would rather ______ at home.
29._____ that they had to stay at home all day.