Having been ___ volunteer in a day-care centre for weeks, Susan feels much sympathy for ___ disabled.
| A．a; / | B．/; a | C．the; the | D．a; the |
Have you noticed the problem ___ he is now in low spirit ? ____ come?
| A．where, What | B．that, How | C．in which, For | D．what, As |
We have gathered nearly 100,000 quilts, ___ up to half have gone to the flood-hit areas.
| A．with which | B．in which | C．for which | D．of which |
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 |