______,we saw the sun rise on top of Mount Tai.( )
A.LuckyB.LuckilyC.UnluckyD.Unluckily
Ken was so busy when we saw him, because he _______ a speech the next day.
--- What did he tell you just now?--- He said that ____________ tomorrow morning.
By the time Dave reached the small boat, a thick white fog _______ over the surface of the water.
The teacher told the kids that light ________ faster than sound.
He said that his car ______ stolen and he _______ have to telephone the police.