They climbed rocks, _____rivers and settled in the valley.
| A．across | B．crossing | C．crossed | D．and crossing |
He kept smiling secretly and we were all wondering that made him so happy.
| A．how it did | B．what he did |
| C．how it was | D．what it was |
. After the terrorist attack last month, anyone at the airport heavy bags, bottles of liquid, or whatever, could be stopped and questioned by the police.
| A．seen carrying | B．seen carry |
| C．seen to carry | D．seen to be carrying |
. — Why did you go to the wrong office, Peter?
— Well, I forgot which room I was to go to.
| A．hoped | B．suggested | C．demanded | D．supposed |
“Only two centimeters higher, break the world record,” encouraged the coach.
| A．you will | B．and you will |
| C．or you will | D．will you |
. Having been praised by the teacher, the little girl ran back home, .
| A．happily and satisfied | B．eager and excitedly |
| C．happy and satisfied | D．anxiously and excitedly |