___ they visited our school, they showed great interest in everything they saw.
| A．The first time | B．For the first time |
| C．At first | D．At the first time |
When do you think ______ start the new attack?
| A．they will | B．will they | C．they can | D．can they |
During the tourist season, there are many people wandering in this city to see the old
castles _____ in the sixteenth century.
| A．to be built | B．being built |
| C．having been built | D．built |
_______ which way to take, the little boy behaved like a real gentleman who comforted his
sister from time to time.
| A．Leaving to wonder | B．Having left to wonder |
| C．Left wondering | D．Left to wonder |
He doesn't know what to say, for it is the first time that he ______ with a girl.
| A．went out | B．goes out | C．has gone out | D．had gone out |
There were many more people who got injured in the big fire than _______.
| A．was reported | B．it was reported |
| C．were reported | D．they were reported |