19. It is reported that China has created the first man-made sun in the world recently, ______ ?
The engine of the bus was ______,and the bad weather added to the worries of the passengers.
The house is finished at last. All their hard work has _____.
It won’t be easy, but we’ll get across the river ______.
Our house on the hillside ______ a beautiful view of the port.
This area experienced ______ heaviest rainfall in ______ month of May.