— Why, David, you look so tired!— Well, I ________an article and I must finish it tomorrow.
Have you noticed the problem ___ he is now in low spirit ? ____ come?
We have gathered nearly 100,000 quilts, ___ up to half have gone to the flood-hit areas.
Price is not the only thing customers consider before ______ what to buy.
The sales department was required In ______ a plan in three weeks.
Look at the clock! It's time ______ work.