.I tried every means to reach my goal but failed. So sad ______ that I almost lost heart.
It was at the entrance of the zoo ___________ he met his girl friend who had been to London for a better position.
Why ask me to take that early bus?— Because that bus _______ the 9:30 train at Boston .
Doing some __________ every day is good for your health .
_____no doubt that someone _____ the wooden box containing the most precious treasures fromthe carrier under the cover of darkness [ ]