What’s your sister doing? — She is singing a song _______ my mother. [ ]

The mother with her little son ____ at my home _____ that snowy night.

Which of the two English dictionaries will you buy?——I’ll buy ________ of them, so I can give one to my friend Helen.

Have you found the information about the famous people you can use for the report?—Not yet. I’ll search some on the internet.

So far as English is concerned,it is not______ you might think.