—How long _____you ______ here? —About a week. Afterwards I will go to Beijing.
—Mary's been offered a job in a university, but she doesn't want to take it. —________? It's a very good chance.
—I'm sorry I made a mistake! —________. Nobody is perfect.
He jumped out of bed and ran to the door to see ________ the parcel was for.
It is important to introduce children to healthy nutritious foods from ________ they begin to eat solids.
Suppose we meet with a situation ________ none of us can deal with, what then?