The work is too hard, so ____ were needed.
| A．another six men | B．six men more | C．more six men | D．men another six |
Some of my friends are interested in science, but none of them can tell ________.
| A．when UFOs appeared next time |
| B．that horses know the way or not |
| C．where was this kind of plant found |
| D．how elephants communicate |
______ your English teacher ______ you ?
| A．Do, strict in |
| B．Does, strict with |
| C．Is, strict with |
| D．Is strict in |
They were talking about the persons and things _______ they saw in the factory.
| A．which | B．that |
| C．what | D．they |
Not only the students but also their teacher_______ the Great Wall before.
| A．have been to | B．has been to |
| C．has gone to | D．went |
It is impossible for ______ little children to do ______ much work within 20 minutes.
| A．so, so | B．so, such |
| C．such, so | D．such , such |