We must        the right place to park the car. 

- In our school library, there____ a number of books on science and the number of them ______ growing larger and larger.

I hope everyone ______ our English evening. 

The people in Ya'an have met lots of difficulties, but they haven't ________ hope.

-- I' ve     using plastic bags when shopping.-- You' re right. It' s good for our environment.