The Browns held _____ they called"family day"once each year.
The performance supposed to be popular ________to be a great disappointment after it was over.
—Did you go to see the play last night?—Unluckily, I couldn't ________it. But I am going to see it soon.
—Did anyone support you at the meeting?—Moore was the only person who ________my opinion.
Having a trip abroad is certainly good for the old couple, but it remains ________whether they will enjoy it.
The purpose of new technique is to make life easier,________it more difficult.