A fire broke out in the neighborhood last night. By the time the firemen arrived, it .
| A．had been put out | B．would put out |
| C．has been put out | D．was putting out |
______ of a new car factory is good news for all the villagers.
| A．Building | B．To build | C．Build | D．The building |
In my opinion, ______.
| A．Shanghai is one of the biggest cities in the world |
| B．he has neither brothers nor sisters |
| C．he is the cleverest boy in our class |
| D．there are 50 students in our class |
—Who is making so much noise in the garden?
—______ the children.
| A．It is | B．They are | C．That is | D．There are |
I want to buy a computer, but there is only one left in that shop, so I'll have to buy ______.
| A．one | B．it | C．that | D．them |
Mother insisted that the child's hands ______ before dinner.
| A．should wash | B．be washed |
| C．had been washed | D．would be washed |