-- Did you read a book about customs last week?-- Yes, I found ______ very useful to know the customs of foreign countries.

 –Where ______ my pens? –      on the table. 

_____a cat.  We do not know_____ name.      

—Where is Beijing?—        here.

 – Which of the two coats will you take? – I will take ________. One is for my brother and the other is for myself.