Are Mr. and Mrs. Wang living alone in the house? —-Yes, altough they have three sons, of them live with their parents.

I want to know more __________about how to use this word.—You can look it up in the dictionary.

Don’ put off ________ a travel plan. It’s time for us to start.

Early experiences taught me not to be overly _about shopping by mobile phone because there is a high risk of being cheated．

Mr. Jenkins has been busy with his work these days and seldom _________ to come over to have a chat with me.