— __________ when has the country been open to international trade?— 1978, I suppose.
The performance supposed to be popular ______ to be a great disappointment after it was over.
My demand is that the information referred to in my report ______ to Mr. Brown without delay.
---Cliff, I lost your bike at school. I suppose I should pay for it. ---Oh, ______. It was an old bike anyway.
---Could you tell me the way to the zoo? ---Follow me, please. I happen ______ there, too.
---Who is making so much noise in the garden? ---______ the children.