--- Is this the first time you ___ Xiamen? --- No. But the first time I ____ here, the city wasn’t so beautiful.
His health is ______improving. I'm sure he will come back to work soon.
—Did the naughty boy break the glass by chance? —No, ______.
They______ with each other for two years before they got married.
It has something to do with the part electricity ______ in our life.
After graduation he took all his works to London ______ get a good job there.