By the time Jane gets home, her aunt________ for London to attend a meeting.
| A．will leave | B．leaves | C．will have left | D．left |
Mark said that he was unfit for the job, so he decided to _____ from the company.
| A．suffer | B．resign | C．retire | D．escape |
—If not controlled, some terrible diseases will spread in the stricken areas after the terrible earthquake.
—So people there are in _____ need of medical teams.
| A．anxious | B．permanent | C．specific | D．desperate |
Foreign trade, the ____ of goods between nations, takes place for many reasons.
| A．exchange | B．bargain | C．production | D．business |
The famous professor’s lectures, though ____ informal, are considered far more informative and interesting.
| A．occasionally | B．constantly | C．regularly | D．usually |
____ through Africa, the infectious disease jumping from children to adults killed 1,000 people.
| A．Swept | B．Having been swept | C．Having swept | D．Sweeping |