There ______ many people ______ in the office, but now nobody is allowed to.
| A．used to be；smoking | B．used to have；smoking |
| C．used to be；smoke | D．used to have；smoke |
Price is not the only thing customers consider before ______ what to buy.
| A．deciding | B．decided | C．to decide | D．having decided |
The sales department was required In ______ a plan in three weeks.
| A．turn up | B．get up | C．come up with | D．put up with |
Look at the clock! It's time ______ work.
| A．we started | B．we'll start | C．we're starting | D．we have started |
The manager showed the new employee ______ to find the supplies.
| A．what | B．where | C．that | D．which |
If the machine should ______, call this number immediately.
| A．break down | B．set out | C．put on | D．go up |