. Leo ______ have kept his promise. I wonder why he changed.
—What’s that terrible noise? —The neighbors_______for a party.
Ah,it was the place_______we once dug the reservoir.
_______know the truth about it will tell you.
Even with the guide leading the way,they_______to cross the thick forest.
—Do you think he will do me a favor? —As far as I know,he is the last one to help others.He_______be prepared to give you a hand,though.