Having a trip abroad is certainly good for the old couple,but it remains __________ whether they will enjoy it.
There have been no occasions ____ he has come late for school.
—Sorry to have interrupted you. Please go on. —where was I?—You ____ you didn’t like your father’s job.
—Is there anything wrong, Bob? You look sad. —Oh, nothing much. In fact, I _____ of my friends back home.
Sandstorms in Asia seem _____ in recent years as a result of desertification.
If you don’t like the drink you _____, just leave it and try a different one.