Vincent van Gogh’s paintings were at last _____ as works of genius.
—Was it under the tree ______ you went away talking to a friend?—Sure. But when I got back there, the bike was gone.
Whitney Houston’s sudden death suggests that drug abuse is such a serious problem ______ we should deal with properly.
The argument is extremely heated ______ there are necessary conditions of existence such as water on the Mars.
In my home breakfast ______ at 7 o’clock, which has ______ unchanged for 20 years.
— It seems that you are familiar with this city.— I ______ English in a high school here for three years. It' s great to be back!