There is ______ “s” and _______ “u” in the word “bus”.
| A．an, an | B．a, a |
| C．an, a | D．a, an |
__________ is spoken the most widely in the world.
| A．Chinese | B．English | C．French | D．Russian |
Be __________, and you will do well in the English exam.
| A．careful | B．polite | C．sure | D．friendly |
The accident happened ______ a cold winter morning.
| A．in | B．on | C．at | D．of |
“The World Without Thieves” is a very moving film. I ______it twice already.
| A．will see | B．see | C．saw | D．have seen |
Today computers ______in both cities and towns.
| A．were using | B．are used | C．were used | D．are using |