-- How’s your tour around the North Lake? Is it beautiful? --- It ________ be, but it is now heavily polluted (污染).
Can you imagine what a girl will look like___________ she comes across a rat in her room?
--It starts raining outside. --Oh, ____________!
He felt rather __________ that she should drive the car at such a____________ speed.
The old woman is sitting_____________ her daughter.
--__________? --It depends on what it is.