After being questioned by the police , he admitted ____in the supply of drugs over a 20-year period.
| A． to be involved | B． being involved | C． involved | D． been involving |
Going out of the park, the visitors all said they were deeply __________ by what they had seen there.
| A．interested |
| B．lost |
| C．impressed |
| D．improved |
He showed a great __________ for languages.
| A．power |
| B．appearance |
| C．talent |
| D．character |
On hearing the news of the accident in the coal mine, she __________ pale.
| A．got |
| B．changed |
| C．went |
| D．appeared |
—Did Jack come back early last night?
—Yes. It was not yet eight o'clock __________ he arrived home.
| A．before |
| B．when |
| C．that |
| D．until |
In order to finish the work on time, we can't __________ to waste a single minute.
| A．afford |
| B．admit |
| C．offer |
| D．manage |