Study hard, _______ you will fail in the exam.
| A．or | B．and | C．but | D．because |
______the classmates ______ the teachers taught the boy French, so hehad to teach himself.
| A．Both---and |
| B．Neither---nor |
| C．Either---or |
| D．Not only---but also |
When I got to the cinema, the film _______ for five minutes.
| A．have begun |
| B．had begun |
| C．has been on |
| D．had been on |
---______ hot weather these days! ---Yes, it will last ______.
| A．What a; two another days |
| B．What ; another two days |
| C．How ; for two more days |
| D．How ; two days more |
Don’t be afraid of asking for help ______ it is needed.
| A．unless | B．since | C．although | D．when |
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 |