Children in the countryside can receive education ________ free since last year.
| A．for | B．in | C．of | D．on |
Many websites have been _______ to help people study foreign languages.
| A．set off | B．set up |
C．set down | D．set out |
This is the deepest swimming pool _______ I have ever seen in China.
| A．that | B．what |
C．where | D．Which |
Kathy told me that all the doors and windows _______ when she arrived this morning.
| A．have cleaned | B．have been cleaned |
C．had cleaned | D．had been cleaned |
It was in the forest _______they found the lost cow.
| A．where | B．when |
| C．that | D．as |
He knows several languages ________ English, French and Japanese.
| A．such as | B．for example |
| C．according to | D．that is |