When paying for a taxi, he never looks at his wallet –just takes out one note ____ and hands it over.
| A．by accident | B．on occasion | C．at random | D．on average |
She started as an office junior and _____ became director of the whole company.
| A．in time | B．on time | C．in turn | D．in return |
You are not permitted _____ chance alone.
| A．to be taken a | B．to take a | C．taking a | D．being taken |
____ of coal ____ explored in this area every year.
| A．A plenty; is | B．Large amounts; is | C．A number of; are | D．Large amounts; are |
“ Did you enjoy yourself at the dinner party?”“ Yes, I have never been to ____ one before.”
| A．a more excited | B．the most excited | C．a more exciting | D．the most exciting |
She is looking forward to _____ president of the university.
A．electing (选举) the |
B．being elected | C．be elected | D．elect the |