It can be easy to _______ such bad habits as smoking and heavy drinking, but it is not so easy to quit.

What’s your name — Smith.

The notice came around two in the afternoon _____ themeeting would be put off.

The word “ungelivable”, based on Chinese, which has become a big hit online very quickly, ______ a message that Chinese can also serve as an addition to English vocabulary.

______we were worried about was ________they could manage to control the pollution.