It is no doubt that once ____ this city, you’ll find that there is so much surprise waiting for you to discover.
-- What caused the failure of the experiment? -- _____.
A cracked bell can never sound _____.
We might not contact the rescue team. _____, the rescue team itself might get lost.
. There is a tradition of having a family dinner at home on lunar New Year’s Eve. _____, however, the custom has changed.
The farmers were sure that fresh water lay ____ in the earth, so they dug ____ to find it.