Substances will expand or contract ______ heated or cooled, but this is not the case with water

Don’t defend him any more. It’s obvious that he ______destroyed the fence of the garden even without apology.

I’ve bought a box of chocolates for our daughter—Oh, how good a dad! But she doesn’t like sweet things________that?

Itbe difficult to get a train ticket during traditional Chinese Spring Festival this year because there are many ticket windows.

They don’t think the Internet will ________newspapers and TVs which have their own advantages.