-- Have you seen ______pen? I left it here this morning-- Is it ______black one? I think I saw it somewhere
The country life he was used to _____ greatly since the opening policy.
He went there, _____ some books and call on an old friend of his.
It is the first time that you have come to China, _____?
— Shall I go and buy two more bottles of beer? — No, I’ve already bought twenty. That _____ be enough for us two.
Whether by accident or _____ , he arrived too late to help us.