We already have ______pencils, but we need two ____ pens.
| A．dozen of ; dozen | B．dozens of ; dozens |
| C．dozens of ; dozen | D．dozen; dozen |
--- How ________ do you attend the evening classes?
--- _______, three times per week.
| A．long; On the whole | B．often; On average |
| C．soon; Generally speaking | D．much; In all |
It is suddenly ______ me that we could turn to our neighbours for help.
| A．thought | B．struck | C．came | D．occurred |
Tom succeeded, for he had made a great ______ and got over plenty of difficulties.
| A．progress | B．force | C．energy | D．effort |
It is agreed _______ there is a river, there is a city.
| A．that | B．where | C．that where | D．there which |
It is amazing that the little boy can go _______ the forest ________ 100 meter long.
| A．across; measuring | B．over; measured | C． across; measure | D．through; measuring |