The zoo keeper is worried because the number of visitors ______ smaller and smaller .

--- I’d like to borrow a book. Its name is “Travel around the world”. --- Let me check on the computer first. Oh, it ______ that Kate has got it.

Many teachers______cars nowadays. They drive to work every day. 

Some students in Shanghai     e-bags for several months.  

— Is Mike at home? — No. He ________ with his friends now.