Tom's old computer ran fast five years ago,but little by little it really slow.( )
looked
became
sounded
stayed
Neither they nor I __________ to go camping yesterday.
—Is your uncle really very ill?—______. He’s in hospital.
Joe has ______ for ten years. Ten years ______ a long time.
I enjoy staying outside so I always sleep with the window open it is really cold.
It’s 12:00 pm now. They _________ be sleeping.