St Petersburg, is a very beautiful city, was once called Leningrad.
| A．which | B．where |
| C．that | D．what |
At our factory there are a few machines similar to _______ described in this magazine.
| A．them | B．these | C．those | D．ones |
The traffic on the main streets has a longer green signal than _______ on the small ones.
| A．one | B．this | C．that | D．it |
I’ve lived in New York and Chicago, but don’t like ____ of them very much.
| A．either | B．any | C．each | D．another |
There are a small number of people involved, possibly ______twenty.
| A．as few as | B．as little as | C．as many as | D．as much as |
(2013·浙江，11)Half of ________ surveyed in 16 countries say they go first to their closest friend to share their deepest wishes and darkest fears.
| A．these | B．some |
| C．ones | D．those |