My grandfather was badly ill, so we asked him _________ smoking.

How does your sister study English? –She studies by_________ tapes

The Qingming Festival which is also called______Pure Brightness Festival, falls on April 5 every year, it is______time-honored tradition(悠久的传统) for the Chinese to honor their ancestors.

You can see _______ if you go out at night.

, one of the world’s favourite drinks was invented.[ ]